baber/WOPTO huggingface dataset:
Patent GB-509260-A (GB)
Title: Automatic setting device for shutters and diaphragms of photographic apparatus
IPC: G03B7/12
Filed: 1938-01-12
Abstract: 509,260. Electric control systems ; cameras. I. G. FARBENINDUSTRIE AKT.- GES. Jan. 12, 1938, No. 1024. Convention date, Jan. 18, 1937. [Class 40 (i)] [Also in Groups XX and XL] In apparatus for adjusting the speed of operation of the shutter or the size of aperture of photographic apparatus, the setting mechanism is adapted, during setting, to vary the current in the circuit of a photo-electric cell and galvanometer until the pointer of the galvanometer stops the mechanism in a position determined by the quantity of light falling on the cell. As shown in Fig. 3, a photo-cell 1 subjected to the light conditions is arranged concentrically with the objective aperture 11 of a camera and is connected in series with a galvanometer 4 having a pointer 5a which co-operates with a gear-wheel 6 of the driving gear train of the setting mechanism. The mechanism is set by a lever 13 which tensions a driving spring and opens a shutter 2 fully to produce a deflection of the pointer 5a which corresponds with the existing light conditions. The mechanism is then restored under the control of the driving spring until the gear train is locked by the restoration of the pointer 5a, the amount of movement being determined by the light conditions. Instead of a shutter 2, a variable resistance may be employed. In the arrangement shown, the gear train operates the speed setting mechanism and the shutter is released by the lever 24 which when operated removes the wheel 6 from engagement with the train ; alternatively, the release lever disengages the driving pawl from the gear train to effect operation of the shutter. A variable resistance may be included in the circuit of the photo-cell to facilitate adjustments depending upon sensitivity of the photographic material, size of objective aperture or the effect of a filter.
Patent GB-973633-A (GB)
Title: Improved boom rigging forming part of a derrick or crane
IPC: B63B27/04
Filed: 1963-01-09
Abstract: 973,633. Ships' derricks. V. C. FARRELL. Jan. 9, 1963 [Jan. 26, 1962], No. 1082/63. Heading B8B. A ship's derrick 10, Fig. 1, is pivoted to a king post 14 at 12 and supported by a topping lift 32 which passes from an anchorage 40 over pulleys 38, 36, 34, 29 to a winch, and slewed by a yang-line 52 which is fixed to the top of the derrick and passes round a pulley 54 to a further winch. Fig. 5 shows a modification in which the pulleys round which the cable 32 passes are closer together. Any or all of the cables may be multiplied to handle heavier weights. Fig. 6 shows a second embodiment in which the boom 80 has a cross-piece 86. A vang-line 106 passes from an end 86a round a pulley 108 on the bulwark to a winch W2. A topping lift 98 goes from an anchor point 100 round pulleys 96, 88, 92, 90, 94, 102 and to a winch W1. One part of the load cable 110 goes from a hook 114 round pulleys 116, 118, 128, 130 to a splice 124. The other part 112 of the lifting cable passes from the hook 114 over pulleys 132, 118, 128, 130 to the splice 124 where it joins cable 110. From here the single cable 110 passes over a pulley 140 to a winch W3. The pulley blocks which have to pass both cables 110, 112 and the splice 124 are enlarged, Fig. 10. Specification 671,657 is referred to.
Patent GB-884253-A (GB)
Title: Wrapping or packing material having a preserving action, and process for its manufacture
IPC: D21H17/14
Filed: 1959-01-12
Abstract: A preservative food-wrapping contains calcium sorbate.  Thus, calcium sorbate may be incorporated in paper at any stage of manufacture or paper may be soaked, dusted with the salt, rolled and dried. Alternatively paper, or metal or plastic foils may be soaked in or sprayed with a solution of a soluble calcium salt, e.g. acetate or chloride, and then in a solution of a soluble sorbate, e.g. sodium sorbate.
Patent GB-119173-A (GB)
Title: Improvements in Machines for Boiling, Bleaching, Dyeing, Sizing or similarly Treating Yarns or Fabrics.
IPC: D06B3/24
Filed: 1918-01-22
Abstract: 119,173. Bright & Bros., J., and Evans, J. Jan. 22, 1918. Zigzag-roller type. - In apparatus for boiling, bleaching, dyeing, sizing, or similarly treating yarns or fabrics in machines of the box or beck type, in which the material is drawn through the machine by rollers such as c, c<1>, c<2>, some of the guide-rollers as d<1>, d<2>, d<3>, d<4> are mounted in spring-controlled slide blocks e. The object of so mounting the rollers is to prevent breaking of the material owing to overtension.
Patent GB-545452-A (GB)
Title: Process for protecting wool, furs, hair, feathers and the like against being eaten by moths, and other insects injurious to textiles, the production of acyl sulphonamides for the purpose, and materials treated therewith
Filed: 1941-01-31
Abstract: 545,452. Acylated sulphonamides; proofing animal material against moths. GEIGY, AKT.-GES., J. R. Jan. 31, 1941, Nos. 1277 and '1278. Convention dates, Feb. 2, 1940, and June 22, 1940. [Class 2 (iii)] [Also in Group VIII] Colourless aryl sulphonamides containing halogen in the nucleus and substituted at the nitrogen by an alkyl, aralkyl or aryl residue are treated with carboxylic acylating agents, whereby an acyl group replaces the remaining hydrogen atom attached to the nitrogen. The products are useful for protecting wool, fur, hair, feathers and other materials of animal origin against moths and other insects. The acylation may be effected in the presence of acid binding agents or chlorides of tin, aluminium, beryllium, copper or iron. In examples, the acetyl, benzoyl and palm nut fatty acid derivatives of 3:4-dichlorbenzene N-methylsulphamide are produced. In another example, 3:4-dichlorbenzene N-ethylsulphamide is used as starting material. Propionic and butyric acid derivatives are mentioned. A benzine solution of 3:4-dichlorbenzenesulphone-N- ethylacetamide is used in an example showing the proofing of furs, feathers, and wool against moths. 4-Chlorbenzenesulphone-N-methyl benzamide, 3:4-dichlorbenzenesulphone-N-benzylacetamide, 3:4 -dichlorbenzenesulphoneacetani - lide, 3:4:5-trichlorberizenesulphone ethylacetamide, 4-chlorbenzenesulphonenicotinylethyl amide and 3:4-dichlorbenzenesulphone - N -. methylchloracetamide are also mentioned. Specifications 324,962, [Class 2 (iii)], and 407,356 are referred to.
Patent GB-781991-A (GB)
Title: Improvements in or relating to thread clamping devices for weft replenishing looms
IPC: D03D45/50
Filed: 1955-01-17
Abstract: 781,991. Automatic bobbin charging looms. GLEDHILL, W. V., and CHAPPELL, A. Jan. 17, 1956 [Jan. 17, 1955], No. 1356/55. Class 142(2) As a weft gripper 1 moves rearwardly, its pivoted jaw 9 is opened by a pin 13 encountering a ramp 49 on a spring-loaded arm 29. The fore-and-aft position of the ramp is adjustable by moving the pivot 25 of the arm along a slot 23, and its height is adjustable by a screw 43. Specification 744,491 is referred to.
Patent GB-1248682-A (GB)
Title: A joint for interconnecting two shafts
IPC: F16D3/26
Filed: 1969-01-09
Abstract: 1,248,682. Universal joint. LEMFORDER METALLWAREN A.G. 9 Jan., 1969 [13 Jan., 1968], No. 1441/69. Heading F2U. A universal joint comprises a housing 3, on or for one shaft, slidably guiding (e.g. for pivotal motion about an axis normal to Fig. 2) a block 6, 7 having a projection 13 slidably engaging an axial groove or slot in a member 2 in or on another shaft 1. The block 6, 7 may either be hollow or laminated comprising a resilient central layer of natural or synthetic rubber or polyurethane or P.T.F.E. or polymerized anhydrous CH 2 O, between a low friction layer 8 and a layer partly hard 11 and partly able to withstand high pressure 12. The block may have grooves 15 for lubricant radiating from the projection 13 and may include a projecting rib 9 engaging a corresponding groove in the housing. The joint may include a bolt (34), Fig. 11 (not shown), passing, with clearance through the parts 5, 6, 2, 7, and the joint may be enclosed by a flexible (e.g. polyurethane) cover (17), Fig. 1 (not shown), containing lubricant.
Patent GB-983531-A (GB)
Title: Dynamo-electric machines
Inventor: WATERS ALBERT VICTOR
IPC: H02K15/16
Filed: 1963-01-14
Abstract: 983,531. Making dynamo-electric machines. C.A.V. Ltd. Dec. 19, 1963 [Jan. 14, 1963], No. 1536/63. Heading B3A. [Also in Division H2] A method of making dynamo-electric machines of the type having a housing, a plurality of angularly spaced polepieces secured therein, a rotor within the housing and bearings in or on the housing mounting the rotor for rotation with a small air gap comprises mounting the polepieces on the housing such that they are capable of radial movement, mounting the rotor for rotation in the housing, moving the polepieces into contact with the external periphery of a cylindrical sleeve of constant wall thickness closely surrounding the rotor, securing the polepieces against further movement and finally removing the sleeve. The housing comprises a cylindrical casing and a pair of end plates housing anti-friction bearings. Each polepiece has a radially extending stem which extends through a hole of complementary shape in the casing. The portion of the polepiece at the inside of the casing is undercut to provide a shoulder around which a generator field winding is placed, the inner surface of the pole being cylindrical and having an arc of curvature slightly larger than that of the rotor. The poles may be secured in the casing by brazing or welding. To minimize magnetic losses there may be interposed between each polepiece and the inner periphery of the casing a compressable pad formed from interwoven metal strip or wire. The pad may also allow variable radial positioning of the pieces and prevent the field windings from being trapped.
Patent GB-1452713-A (GB)
Title: Stay
IPC: E05C17/32
Filed: 1975-01-14
Abstract: 1452713 Stays SOC ANON AUTOMOBILES CITROEN 14 Jan 1975 [20 Feb 1974 12 Sept 1974] 1646/75 Heading E2F In a stay for retaining in an open position a panel 2 (e.g. a motor car' door) mounted pivotally about an axis 29 on a fixed structure 3 (e.g. a door-frame) the stay comprises at least two first arms 5, 6, which are interconnected by a flexible link 7, and are pivotally mounted on brackets 19, 22 fastened to the door 2 and the fixed structure 3 respectively, the flexible link 7 comprising a segment 8 which is formed on the bent end of the first arm 5 and interengages with the bent end 25 of a first arm 6 to pivot freely in a first loop 26 of the first arm 5. A similar flexible connection 13 is provided between second arms 11, 12 and the door operates from a closed position shown in Fig. 2 to an open position shown in Fig. 1. Hooks 9, 15 engage around the first arm 6 and the second arm 11 to act as retaining members during the maximum opening of the stay.
Patent GB-138970-A (GB)
Title: Improvements in apparatus for electrically testing magnetos and the like
IPC: G01R31/72
Filed: 1919-01-23
Abstract: 138,970. Hewlett, A. Jan. 23, 1919. Transformers.-A contact-breaker C, induction coil A, and standard condenser B are separately arranged on a base D with switches G, H, J, K so that they may be connected to a battery to give a high testing potential, or a magneto armature and condenser may be tested by separately substituting them for the induction coil A and standard condenser B respectively and comparing their effects. The induction coil A is provided with a safety spark gap R, of which one terminal is connected to the primary and the other, formed by an adjustable screw, to the secondary.
Patent GB-989691-A (GB)
Title: Improvements relating to foot or knee operable speed-control means for electrically-driven sewing machines
IPC: D05B69/18
Filed: 1963-01-15
Abstract: 989, 691. Sewing machines. I. A. LESLIE. April 7, 1964 [Jan. 15, 1963], No. 1716/63. Heading D1G. [Also in Division H2] In an electrically-driven sewing machine, a device for controlling the speed of the driving motor is operated by fluid-pressure responsive means, pneumatically or hydraulically remotery controlled by foot-or-knee operable control means. An insulating bar 6, Fig. 2, carries spacedapart metal contacts 8 and is fixed to an insulating bar 5 carrying a resistance wire coil 4 in series with the driving motor, the contacts 8 engaging the coil 4 and constituting taps thereof. A resilient metal contact arm 7 is fixed at one end to bar 6 and is normally disengaged from the contacts 8. A fixed, inflatable air sac ,16 is disposed beneath a protuberance 15 at the free end of arm 7 and is connected by flexible tubing 17 to a foot-operable air bulb 18. Pressure on the latter serves to inflate sac 16 for raising arm 7 into progressive engagement with contacts 8. The speed of the motor is thereby determined by the degree of inflation of sac 16. A fan on the mirror shaft directs air on to coil 4. In a modification, Fig. 6, a wire coil 19 is engaged by contacts 20 on a bar 21. One end of a contact arm 22 is pivoted at 26 to one end of an oppositely-projecting resilient carrier arm 27 fixed at its other end to bar 21. A fixed air sac 23, disposed adjacent the free end of arm 21, is connected by flexible tubing 25 to a foot-operable air bulb 24. Arm 22 has a convex edge 28 which, when arm 22 is actuated by compression of bulb 24, engages the contacts only one at a time. A oneway air intake valve may be fitted to the footoperable bulb. A mechanical linkage may be interposed between the inflatable sac and the contact arm. The operating fluid may be water. The pressure responsive means may have metal diaphragms or metal bellows. The resistance coil may be replaced by a carbon-pile variable resistance.
Patent GB-304771-A (GB)
Title: A recording apparatus for use on vehicles
IPC: G01P1/12
Filed: 1929-01-17
Abstract: 304,771. Freydure, A. Jan. 26, 1928, [Convention date]. Drum recording apparatus.- A device, particularly for use on motor vehicles, for giving a temporary record of the speed and the operations of the vehicle signals comprises a rotary cylinder provided with pivoted shutters arranged around the outside of the cylinder in rows and adapted to be acted upon by means under the control of the speedometer and signalling devices. As shown applied to the dashboard of a car a cylinder 6, driven by flexible means from one of the vehicle wheels, has rows of shutters 8 painted in a distinctive - colour so as to be clearly visible when turned tangentially to the surface. Each row, excepting the two lowest rows, corresponds to a particular speed while the rows A, S are allotted to the audible and visible or direction signalling devices respectively. The shutters 8 are provided at their lower ends with spiders 9 having arms disposed in two planes. A series of stops 10 co-operates with one pair of the arms of each row to turn the shutters edgewise and a set of spring controlled levers 12 forming the armatures of electromagnets 15 are operatively positioned thereby to move the shutters, during the rotation of the cylinder, to display position. The windings of the electromagnets are inserted in the circuits of the signalling devices and speedometer; those for the speedometer are connected to contact studs 17 and co-operate with a rubbing contact on the indicating pointer 16 of the speedometer 5.
Patent GB-1210482-A (GB)
Title: An electronic control system for diesel-electric vehicles
IPC: B60L50/11
Filed: 1969-01-13
Abstract: 1,210,482. Automatic speed control. SULZERBROS. Ltd. Jan. 13, 1969 [Jan. 11, 1968], No. 1836/69. Heading G3R. In a diesel-electric vehicle having a supercharged diesel engine 8 driving a generator 6 which supplies the traction motors 10 and wherein a set speed signal a is compared with an actual speed signal b to control the injection of fuel and, after conversion in a function generator 20, with a speed deviation signal C<SP>1</SP> to control generator excitation, the generator excitation is prevented from falling during acceleration or rising during deceleration of the diesel engine. A set speed signal a is produced by a generator 1 controlled by a driver or automatically (not described). After amplification at 12, it is compared at 3 with the output b of a tachometer generator 11 driven by the engine 8. Comparator 3 delivers a speed deviation signal C which is amplified at 13 and applied through a limiter 15 to control fuel injection pumps; the limiter 15 is controlled by fuel pressure to prevent overcharging. The set speed signal a is also applied to function generator 20 which delivers a signal e representing the set value for power output of the engine. This is compared at 4 with the amplified speed deviation signal C<SP>1</SP> and the output h of the comparator 4 is integrated at 22 and applied to control the energization of the field 5 of the generator 6. During acceleration or deceleration the output h of the comparator 4 is cancelled so that there is no change in the output of integrator 22 and the excitation of the generator is not changed. The signal h is fed to an inverting amplifier 27 having separate outputs for positive (deceleration) or negative (acceleration) signals. During deceleration the speed deviation signal C<SP>1</SP> closes a transistor switch 31 Fig. 2 (not shown) connecting the positive output to an adding circuit 26 to cancel the signal h; during acceleration a transistor switch 30 is closed by a simulated speed deviation signal q to connect the negative output to 26. By giving the amplifier 27 a gain greater than unity over-compensation may be provided causing the generator excitation to rise slightly during acceleration and fall during deceleration. The simulated speed deviation signal q is also used to shut off various auxiliaries 35 during the acceleration, such as cooling fans, carriage heaters, &c, to conserve energy.
Patent GB-253960-A (GB)
Title: Improvements in or relating to metal spars and the like for aircraft
IPC: B64C1/06
Filed: 1925-01-21
Abstract: 253,960. Mooney, D. J., and Emby, D. H. Jan. 21, 1925. Addition to 141,141, 194,114, and 218,074. Framework.-Metal spars &c. having outstanding flanges as described in the parent Specifications, have their parts secured together by bolts e or rivets passed through the upper and lower flanges and through distance tubes f shaped to fit the flanges, or shouldered solid or hollow rivets may be used for the same purpose. Where it is desired to secure a wiring-plate n, Fig. 3, the distance piece may be formed of two plates riveted together with embossed portions m surrounding the through-bolts. Washers shaped to fit the flanges may be placed under the bolt-heads and nuts. Saddle pieces for embracing cross-members may be secured to the spar by the same rivets or bolts.
Patent GB-903588-A (GB)
Title: Method of polymerising conjugated diolefins
IPC: C08F136/04
Filed: 1959-01-19
Abstract: The brown needle-shaped crystalline form of titanium trichloride is prepared by subjecting a gaseous mixture of the tetrachloride and hydrogen at room temperature to the action of a dark discharge.  It is also formed by the decomposition of trichloromonoalkyl titanium compounds in solutions, e.g. in a hydrocarbon solvent, the decomposition occurring spontaneously. The two forms of titanium trichloride are readily distinguished by X-ray examination; the common violet form with the layer structure shows intense reflections due to planes with a rectilinear distance of 5,9   while the brown needle form shows reflections due to planes with a rectilinear distance of 5,4  .  In heating to about 200 DEG  C. the brown form is converted to the more stable violet form.  Specification 834,554 is referred to.ALSO:Conjugated diolefines having at least one vinyl double bond are catalysed in the presence of the reaction product of aluminium alkyl and titanium trichloride in the brown, needle-shaped crystalline form; the products have a predominantly cis-1,4 configuration.  Butadiene is polymerized using an aluminium dialkyl halide and an Al:Ti mole ratio of not more than 0,3; isoprene is polymerized with an aluminium trialkyl and an Al:Ti mole ratio of 0,3-1,5:1.  Temperatures of -80 DEG  to 150 DEG C. are used with a hydrocarbon solvent in processes as described in Specification 834,554.
Patent GB-372713-A (GB)
Title: Improvements in chucks particularly for dental angle hand pieces
IPC: A61C1/14
Filed: 1932-01-21
Abstract: 372,713. Dental band-pieces. DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT VORM. ROESSLER, 7, Weissfrauenstrasse, Frankfort-on-Main, Germany. Jan. 21, 1932, No. 1894. Convention date, Oct. 24, 1931. [Class 81 (ii).] In an angle-drive chuck, particularly for dental work, the slide employed to hold the tool in place is held in its end positions by means of a stirrup-shaped spring embracing the neck of the angle-piece and formed with a notch or nose to engage either of two noses or notches on the slide. The T-shaped slide 4 working in a correspondingly shaped groove in the anglepiece 2 is formed at its lower enlarged end 14 with two notches 11, 12 one or other of which is engaged, in the two end positions of the slide, by the nose 9 formed on one limb 8 of a spring 6 which embraces the neck 5a of the angle-piece and may be held in position by a sleeve 5b. The slide may be limited in its movements by means of an abutment surface 13 on the angle-piece 2 and by the sleeve 5b engaging the enlarged lower part 14 in its extreme position. In modifications the slide may have noses or projections engaged by a notch on the spring, or both sides of the slide and both limbs of the spring may have engaging notches or projections.
Patent GB-509774-A (GB)
Title: Improvements in or relating to mechanical pencil
IPC: B43K21/08
Filed: 1938-01-20
Abstract: 509,774. Pencil holders. BLAKE, W. H. Jan. 20,1938, No. 1917. [Class 146 (iii)] In a pencil holder of the type in which the lead pusher is fed forward by rotation, in a helically-slotted tube 6, of a longitudinallyslotted tube 10 which is also provided with jaws 14 normally spring-pressed into the casing to grip the lead, the jaws can be moved by a spring to release the lead when the rotatable operating-head is moved axially relatively to the tube 10. The casing is formed with a bore having a screw-threaded section engaging the tube 6 which is formed at the front end with a part-circumferential continuation of the helical slot. The end of the tube is formed as a continuation of the outer casing and is provided with a clamping-section 7 adapted to engage conical faces on the rear end of the jaws 14. The inner end of the tube 10 is formed with a bayonet slot 12 communicating with the longitudinal slot and providing means for the detachable connection, by means of a pin 29, of the refill receptacle 20. A spring 31 acts against the end of the receptacle 20 and a disc slidable on the pin to hold the pin and tube in engagement, and a spring 33, also acting against the receptacle, draws the jaws into the clamp 7. The receptacle is closed by an eraser 22 covered by an operating-head 23. Rotation of the head causes feeding of the lead and, after the carrier 16 has reached the limit of its forward movement, the plunger 18 continues its movement to eject the lead, the plunger then projecting from the front end of the carrier and the carrier projecting from the jaws. If the head be further rotated, the tube 6 is unscrewed from the casing. The head has a bushing 25 sprung into place, the arrangement being that there is greater frictional engagement between the bushing and the end of the tube 20 than between the head and the bushing so that the head can turn relatively to the bushing when the parts reach their limit of movement.