baber/WOPTO huggingface dataset:
Patent GB-1318474-A (GB)
Title: Device for stopping a driven member at a accurately definedposition
IPC: E21B34/16
Filed: 1971-06-14
Abstract: 1318474 Latches INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 14 June 1971 [18 June 1970] 27758/71 Heading E2A [Also in Division F2] A rectilinearly-moving driving element 1, Fig. 10, drives a second element 2 through a connection device 5 adjacent to a third stationary element 3 until, at a position determined by a member 15, the member 15 disengages connection device 5 from element 1 and arrests its movement and, with it, the movement of element 2. As shown, 15 is an abutment which lies in the path of a roller 11 but not in the path of a roller 7. The rollers are attached to a Y-shaped member having a rearwardly-directed stud 12 which may move in a slot 13 provided in element 2. The working of the apparatus is also illustrated in Figs. 4 and 6 which are concerned with rotary motion (see Division F2). Thus, reverting to Fig. 10, element 1 drives element 2 by engagement of of (front) roller 7 in a recess 4 in element 1 and engagement of stud 12 in slot 13. When roller 11 meets abutment 15, Fig. 4, it is urged into a recess 14 in stationary element 3, the Y-shaped member at the same time pivotting in slot 13 and moving upwards. When this action has proceeded to the stage where roller 7 is completely disengaged from recess 4, element 2 is positively stopped in engagement with element 3 while element 1 is free to continue its movement unchecked. Fig. 6 shows the situation where element 1 is slightly beyond the stopping point. Element 1, which is driven by an electric motor not shown or described, may be stopped automatically in a position equivalent to that of Fig. 6 by actuation of an electric contact; the fact that driven element 2 has been stopped may be signalled electrically. To entrain element 2 again, the direction of movement of element 1 is reversed, and in due course an abutment 16 on element 1, lying in the path of roller 7 only, engages roller 7 in the manner shown in Fig. 7, and re-orientation of connection device 5 continues until roller 11 is wholly withdrawn from recess 14 and the Fig. 10 position is re-gained. The abutments 15 and 16 may be dispensed with. Instead, a compression spring is located in each of the recesses 4 and 14.
Patent GB-1519844-A (GB)
Title: Closure frames for openings in buildings
IPC: E06B1/60
Filed: 1975-07-02
Abstract: 1519844 Window frames SOC POUR L'INDUSTRIALISATION RATIONNELLE DU BATIMENT IRBA Gp 2 July 1975 [4 July 1974] 27825/75 Heading E1J A window assembly in which a frame member of extruded cellular plastics have grooves receiving extruded metal frame members. In Figs. 1-3, (Figs. 1 and 2 not shown) an outer frame 3 has three members of plastics keyed to a wall by bolts 24 and a sill 7 of aluminium. Sliding sashes 1, 2 have aluminium frames with runners 17 and upper guides 18. Overlapping portions of the sashes have a PVC seal 32 Fig. 3A, and brush 33. In Figs. 4-6 (not shown) an outer rectangular frame 43 is of plastics with an additional sill member 48 of metal. Sashes 41, 42 have metal frames. In Figs. 7-8 (not shown) a fixed frame comprises plastics frame members with an additional plastics sill member 76, and glazing strips 84 of metal. In Fig. 9 (not shown) two plastics frame members 91, 92 are connected by a metal member.
Patent GB-1390646-A (GB)
Title: Light-sensitive silver halide photographic elements and their preparation
IPC: G03C1/005
Filed: 1972-06-14
Abstract: 1390646 Silver halide photographic materials KONISHIROKU PHOTO INDUSTRY CO LTD 14 June 1972 [18 June 1971] 27830/72 Heading G2C  A method of incorporating photographic additives in light-sensitive silver halide photographic materials comprises dissolving the additive in a halogenated alcohol of general Formula I:- in which R 1 , R 2  and R 3  each represents H, Cl or OH, at least two of them being Cl and OH, or of general Formula II:- in which A is CF 3  or (-CF 2 -CF 2 ) n -H 1  n being an integer of from 1 to 3, and incorporating the solution into a layer of the material. The additive may be a sensitizing dye e.g. a cyanine, carbocyanine or merocyanine, a stabilizer e.g. 4-hydroxy- 6-methyl-1,2, 3a, 7-tetrazaindene, a hardener e.g. mucochloric acid or a coating aid.
Patent GB-390810-A (GB)
Title: Improvements in or relating to the manufacture of tubes or like hollow bodies from cellulosic compositions
IPC: B31C11/04
Filed: 1931-10-08
Abstract: 390,810. Cellulose tubes. BRITISH CELANESE, Ltd., 22, Hanover Square, London. Oct. 8, 1931, No. 27939. Convention date, Oct. 8, 1930. [Class 99 (ii).] In the manufacture of tubes &c. of compositions having a basis of cellulose derivative by winding sheets of the material upon a mandrel 4, the several layers are caused or aided to adhere by heat applied to the material by a heated roll 3 over which the material passes during winding. The length of path of contact of the sheet 1 with the periphery of the heated roll may be varied by altering the position of a guide roll 2, and the mandrel is preferably pressed on to the roll 3 under the action of a weight 7 or spring to consolidate still further the layers of the tube. A solvent or swelling agent may be applied by a spray 9 to the sheet while it is passing over the heated roll; alternatively a cellulosic cement of doughy or gummy consistency is applied thereto. If necessary the tubes are completed by the action of heat and pressure in a mould. Two or more sheets of cellulosic material of differing composition may be employed in making a single tube. The invention is particularly applicable to barrels for pencils and fountain pens.
Patent GB-972937-A (GB)
Title: Filter means for indicating the presence of metal particles in a fluid system
IPC: B01D35/02
Filed: 1962-07-20
Abstract: 972,937. Liquid or gas filters with indicators. FRAM CORPORATION. July 20, 1962 [Nov. 8, 1961], No. 28016/62. Headings B1D and B1T. Wires are interwoven with non-metallic strands at right angles thereto to form a filter screen 10, Fig. 3. Some of the wire ends are contacted by a metal arc 18 mounted in the upper, 16, of two screen-supporting rings. Some of the remaining wire ends are contacted by a separate metal arc 21 mounted in the ring 16. From arcs 18, 21 project conductor posts 19, 22 respectively, post 19 having an insulating sleeve. The assembly is secured between threaded cylindrical elements 23, 26, Fig. 6, in a pipeline 28, 29, and posts 19, 22 are connected in series with a lamp and battery so that accumulation of metal particles on the screen will be indicated. A short-circuiting switch to test the lamp-battery portion of the circuit may be provided.
Patent GB-645792-A (GB)
Title: Improvements in variable-speed power transmission mechanisms
Inventor: HARRISON PETER WAY
IPC: F16H37/04
Filed: 1948-10-29
Abstract: 645,792. Variable-speed gearing. MORRIS MOTORS, Ltd. Oct. 29, 1948, No. 28089. [Class 80(ii)] A variable-speed power transmission primarily for motor vehicles comprises a pair of independently operable electromagnetic friction clutches 1, 2 having longitudinally moving surfaces and which are coupled respectively through a shaft 4 and a sleeve 7 to the sun-wheel 8 and annulas 9 both having reverse rotation preventing means 21, 22 of a single epicyclic train 5, the planet carrier 10 of which conveys drive through pinions 13, 14 and dogs 18 to an axially slidable gear 17 keyed to output shaft 15. Alternative engagement of clutches 1 and 2 effects drive in first and second gears respectively, while engagement of both clutches yields direct drive giving third gear. Reverse gear is effected by axially sliding the gear 17 into engagement with an idler gear 16 meshing with a gear 12 also driven by the planet carrier 10. To facilitate reverse gear engagement following locking of both free-wheel units 21, 22 on backwards vehicle movement, the free-wheel action of one unit, 21, is manually rendered inoperative by the construction shown in Fig. 2. Therein a lever 41 moves a spring- loaded double armed lever 30to withdraw its roller 29 from engagement with recesses 26 in the free-wheel outer race 25. and a disc 35, pressed thereon by spring- loaded balls 37 in a bridge-piece 38, moves, on backwards vehicle movement, with the race 25 until its spring-loaded pin 39 abuts against the bridge-piece 38, the locked out roller 29 then permitting reverse rotation of the race 25. Re-engagement of the freewheel action is effected on forward drive in first or third gears which returns both race and disc until a slot 36 in the latter and the recesses 26 are re-engaged by'the roller 29. In an application of the transmission to a front wheel drive, the driving end of the output shaft has a bevel pinion meshing with a crown wheel of the final drive. To eliminate overrunning in second gear the free-wheel 21 may be replaced by a brake unit, preferably of the electromagnetic type, which is automatically co-ordinated for engagement with the clutch in that gear, and may be manually overridden.
Patent GB-210126-A (GB)
Title: Improvements in electrical switch gear
IPC: H01H71/56
Filed: 1922-10-17
Abstract: 210,126. Hirst, J. A., and Brook, Hirst, & Co., Ltd. Oct. 17, 1922. Ratchet gearing for operating handles applicable to electric switch gear of the type described in Specifications 155,614 and 166,256, [both in Class 38 (iii), Electric motor control systems &c.]. When the switch gear has been moved to the full '' on '' position the ratchet mechanism is rendered inoperative by means of a mask until the handle has been released. As shown, the movable part A of the casing is actuated by the handle a<3> journaled on a spindle a<5> which carries a cam F. The operating-mechanism for the switch comprises a pawl a<6> engaging a ratchet C mounted on the ends of a shaft c<1>. The mask E is mounted on an auxiliary shaft e' slidable in the shaft c<1>, and carries a lug e<3> which is engaged by a stud c<6> on the ratchet c, and is thereby rotated into a position wherein the pawl is inoperative to impart further movement to the ratchet. On release, the handle a<3> moves to the position shown in Fig. 4 and the cam F permits a spring to move the shaft e<1> to the right, thereby unmasking the pawl.
Patent GB-331762-A (GB)
Title: Improvements in mills for grinding paints, enamels, inks and other viscous substances
IPC: B02C7/00
Filed: 1929-09-17
Abstract: 331,762. Disc Bar Mills, Ltd., and White, E. A. Sept. 17, 1929. Disc and like mills.-A mill for grinding paints, inks &c. comprises a hopper 5, a rotating disc 1 and a stationary block 4 mounted in the framework of the mill with one face resting against or near to the rotating disc. The disc may be mounted eccentrically on a shaft. The material from the hopper 5 falls on to the rotating disc and is ground between the disc and block. The ground material is removed from the disc by a scraper 6 and the block 4 is adjustable and may be placed above the horizontal axis of the disc. The contacting surfaces of the disc and block may be smooth, grooved, toothed &c.
Patent GB-1408811-A (GB)
Title: Hydrodesulphurization of crude oil
IPC: C10G45/08
Filed: 1973-06-14
Abstract: 1408811 Hydrodesulphurization catalysts GULF RESEARCH & DEVELOPMENT CO 14 June 1973 [14 June 1972] 28390/73 Heading C5E A catalyst to be used for the hydrodesulphurization of at least 9815 litres of a crude or reduced crude oil per kilogram of catalyst consists of at least one Group VI metal (i.e. Cr, Mo and/or W) and at least one Group VIII metal (i.e. Fe, Co and/or Ni) supported on alumina and has a pore volume of at least 0À4 c.c./gram, a first pore radius at which one-half of the total pore volume is filled with liquid nitrogen in an isothermal nitrogen desorption measurement and a second pore radius at which one-half of the total pore volume is filled with liquid nitrogen in the preceding adsorption portion of the same isotherm measurement; said first pore radius being 58-80  and said second pore radius being at least 15  higher than said first pore radius. The hydrodesulphurization can be carried out at 343-482 C. and a hydrogen partial pressure of 52À5-350 kg./cm.<SP>2</SP>.
Patent GB-777968-A (GB)
Title: Metal ladders
IPC: E06C7/08
Filed: 1954-10-04
Abstract: 777,968. Ladders. FOUGEROLLES, A. M. R. E. R. DE. Oct. 4, 1954 [Oct. 5, 1953], No. 28483/54. Class 20(2) The uprights 1 of a metal ladder are constituted by channel sections which are flexible and lack innate rigidity and metal rungs 12 are welded on to the edges of the longitudinal slots' formed by the facing edges of the channels. In the embodiments described the rungs extend through the slots and are secured at their ends to the inner faces of the channel. In Fig. 3 the ends of the rungs are welded to a rib 35 on the inner face of the channel; in Fig. 6 the ends of the rungs 12 are secured in sockets 30 riveted or welded to the inner face of the channel; in Fig. 7 a socket 32 pressed or punched into the channel engages the end of the rung. The end of the rungs may be flattened as shown at 42 in Fig. 12. The uprights may be lightened by forming spaced perforations in their outer sides. According to Fig. 15, additional bracing for the ladder may be provided which comprises tension cables 55, 56 supported by arms 53, 54.
Patent GB-1357651-A (GB)
Title: Ratchet mechanism
IPC: G03B17/30
Filed: 1971-06-17
Abstract: 1357651 One way acting brakes EASTMAN KODAK CO 17 June 1971 [17 June 1970] 28501/71 Heading F2E In a camera film transport mechanism a reciprocating ratchet mechanism includes a pawl mechanism with pawl 14, a slide member 12 reciprocable between end positions and having opposed parallel ratchets 22, 24, the pawl 14 being movable into engagement with the respective ratchets, when the slider 12 moves in one direction or the other, to prevent change of direction of travel between the end positions. Depression of a latch 2 by means of a button 3 at the end of travel causes a lug 8 to travel in one of two slots 30, 32 and pivot the pawl 14 to engage one or other of ratchets 22, 24, so that reverse motion of the slide may be performed.
Patent GB-890524-A (GB)
Title: Improvements in or relating to electromagnetic relays
Inventor: GREEN BERTRAM ARTHUR
IPC: H01H50/54
Filed: 1959-08-21
Abstract: 890,524. Electromagnetic relays; electricallyreleased switches. ERICSSON TELEPHONES Ltd. Oct. 3, 1960 [Aug. 21, 19591, No. 28589/59. Class 38 (5). In an electromagnetic relay contact arrangement contact springs 30 . . . 36 are bridged by conductive patterns on a slidable insulating member 29 mechanically connected to the armature 16. The armature 16 is mounted on a return-spring 15 by a copper rivet 17 which also acts as a residual stud between the armature and core 11.. The free ends of the contact springs 30 . . . 36 which may be bifurcated, are bent, as shown in Fig. 3, and the contact areas 37 may be plated or inlaid with a suitable metal. As-shown in Fig. 9,etched or hot-pressed conductive patterns 40, 41, 42 are moved to the left on relay energization and co-operate with springs so that pattern 40 with springs 30, 31, 32 forms a change-over contact set, pattern 41 with springs 33, 34 forms a normally-open contact set and pattern 42 with springs 35, 36 forms a normally-closed contact set. Other combinations of contact patterns may be provided and patterns on opposite sides of the member 29 may be interconnected (Figs. 2 and 4 to 8, not shown). The force exerted by the spring 15 may be matched to the armature pull characteristic and with a steel armature 16 and rivet 17 and a light spring 15 the relay may be retained by remanent magnetism requiring a reverse pulse for release.
Patent GB-245897-A (GB)
Title: Improvements applicable to surgical elastic kneecaps, stockings, and the like
IPC: A63B71/12
Filed: 1924-11-29
Abstract: 245,897. Haywood, Ltd., J. H., and Keywood, W. S. Nov. 29, 1924. Elastic stockings, kneecaps, and the like. - A knitted elastic stocking &c. is provided at any desired point with a double wall forming a pocket to hold a resilient pad. For example, in the kneecap shown in the Figure, a double wall extends from a to band encloses a pad c. The inner wall A, which is identical in construction with the main part of the appliance, may be formed separately and attached to the main part by sewing, or it may be knitted integrally with the main part so as to enclose the pad. The double wall may be provided with an opening to permit removal and replacement of the pad.
Patent GB-284799-A (GB)
Title: Improvements in means for fastening boots to skis
IPC: A63C9/10
Filed: 1926-11-13
Abstract: 284,799. Fortnum &, Mason, Ltd., and Caulfeild, E. V. S. Nov. 13, 1926. Skis.-k toe-iron 2 for use with a ski-binding is of symmetrical construction and is secured by screws 8 in an oblique position on the ski, the same iron thus being applicable to right- and lefthand skis. A central screw 8<c> does not reach the mortice hole 7 provided when a through-the-skiheel-strap is used. The back edge of the toe-iron is cut away at 2<l> to avoid chafing of the heelstrap 4, when such is employed, and the upwardly projecting side members 2<r>, 2<l> are arranged to be outside the strap.
Patent GB-1019481-A (GB)
Title: Method of printing
IPC: C09D11/02
Filed: 1963-07-19
Abstract: In a letterpress printing method in which the ink is removed in a hot dry state from the forme during each printing operation a cellolusic fused ink is employed.  One such example comprises 7.6% (by weight) carbon black, 2.2% Milori Blue, 75.5% Cellulose Acetate Vehicle (9.2% low viscosity Cellulose Acetate, 3.9% "Santolite" Resin MPH, 65.9% Triacetin and 21% Ethyl Lactate), 8.2% Dimethyl Phthalate, 3.7% Linseed Oil Fatty Acid and 2.8% "Santolite" Resin MHP.  The latter resin is a condensation product of formaldehyde and toluene sulfoamide.  A second example comprises 100 grams of vehicle (20% half-second viscosity cellulose butyrate, 80% carbitol acetate), 10 grams carbon black and 3 grams Milori Blue. Example 3 comprises 100 grams of vehicle of Example 1 and 100 grams of titanium dioxide. A fourth example is as Example 1 except the vehicle is 15% 3-second cellulose acetate and 85% ethyl lactate.  Example 5 is as Example 1 except the vehicle is 24% half-second cellulose butyrate and 76% ethyl lactate.  Example 6 comprises 100 grams of vehicle (25% half-second cellulose butyrate and 75% carbitol acetate), 10 grams of Mogula carbon and 3 grams of Milori Blue.  Example 7 has 100 grams of the vehicle of Example 6, 10 grams of Bead Black carbon and 3 grams of Milori Blue. The eight example is 100 grams of vehicle of Example 6 and 100 grams of titanium dioxide. The ninth example is as No. 8, gold being substituted for the dioxide.  The tenth composition has 66.6 grams of the vehicle of Example 6 and 33.3 grams of titanium dioxide. Examples 11, 12 and 13 each have 200 grams of the vehicle of Example 6 with, respectively, 100 grams of Chrome Yellow, 50 grams of Iron Blue, 25 grams of gold. Each of Examples 14 to 20 have 100 grams of vehicle, 110 grams of carbon black and 3 grams of Milori Blue with the following respective vehicles-15% 3-second cellulose acetate and 85% carbitol acetate, 25% half-second cellulose butyrate and 75% diacetone alcohol, 25% half-second cellulose butyrate and 75% butyl lactate, 25% half-second cellulose butyrate and 75% butyl cellulose, 25% half-second cellulose butyrate and 75% DM Dowanol 16 (a polyglyvol ether), 25% half-second cellulose butyrate and 75% Ansol Ether # 161, 25% ethyl cellulose and 75% carbitol acetate.
Patent GB-233737-A (GB)
Title: Improvements in and relating to electrical valve amplifiers
IPC: H04B1/16
Filed: 1923-11-14
Abstract: 233,737. Priess, W. H. Nov. 14, 1923. Thermionic amplifiers.-Relates to multi-valve amplifiers for the amplification of currents of radio or audio frequency in which the inter-valve couplings comprise transformers or choke coils, and consists in employing at the several stages couplings resonant ' to different frequencies, and combining therewith potentiometer control of the grid potentials, so as to vary the damping of the couplings, and consequently vary the sharpness of resonance. The object is to secure approximately equal amplification for a range of frequencies, thereby securing freedom from distortion in dealing with audio frequencies, and in the case of radio frequencies enabling a set to receive efficiently over a wide range of wave-lengths. Fig. 1 shows the application to a two-stage radio-frequency amplifier, the transformers A, B and the input circuit K, I being resonant at different frequencies. The grid potentials are adjusted by a potentiometer H shunted by condenser K<1>, and filament current is supplied from a transformer T. Condensers K<2>, K<3> and a resistance R are connected across the filament leads, and the grid circuits are connected to a point between the condensers and to a tapping on the resistance. The potentiometer for varying the grid potential may be connected across the filament battery, and mav have separate sliders H, H<1> for the several grid circuits. This arrangement is shown in Fig. 5, in which also the first high-frequency transformer A is replaced by an inductive or non-inductive resistance R in the plate circuit of the first valve and a resonant choke coil L<10> in the grid circuit of the second valve. The positions of the elements R, L<10> may be reversed. A condenser C<10> is connected between the plate of the first valve and the grid of the second. A crystal or like rectifier D, or a valve with grid leak, may be used as a detector, and the resulting low-frequency currents may be amplified by additional valves, or the radio-frequency valves may be utilized also for the amplification of the audio-frequency currents in the manner described in Specification 234,025. When two or more stages of audio-frequency amplification are employed, the resonance of the intervalve couplings is graduated. A reaction cricuit described in Specification 234,025 comprising an adjustable inductance, a resistance, and a capacity all in series may be connected between the plate of one high-frequency valve and the grid of an earlier valve; and a similar circuit may be connected between the plate of the detector valve and a variable tap on the grid coil of that valve. Electromagnetic reaction may also be employed from the plate circuit of the first valve to its input or aerial circuit. The filament rheostat may be employed for adjusting the grid potential of some or all of the valves in the manner described in Specification 234,024. The transformers are. preferably constructed as described in Specification 234,023.