baber/WOPTO huggingface dataset:
Patent GB-1086472-A (GB)
Title: Improvements in or relating to information storage apparatus
IPC: G02F1/31
Filed: 1965-05-06
Abstract: 1,086,472. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 6, 1965 [June 10, 1964], No. 19128/65. Heading G4A. [Also in Division H4] In an optical read-only store, aligned storage elements in which data is stored in the form of light-reflecting layers are interleaved with control devices energizable to rotate the plane of polarization of light passing therethrough by 45 degrees, data being read from a selected storage element by energizing the control devices adjacent the selected element and passing plane polarized light through all the storage elements, light coherently reflected from the layers in the selected element being thereby polarized at 90 degrees to the incident light and that reflected from other storage elements so that it can be separated out. The light from the selected storage element may be significant by its shape or be digital, and is sent to photodetectors or display or printing means. An adjustable filter is placed in the incident or reflected light to select data in sets of reflecting layers having a particular spacing.
Patent GB-699664-A (GB)
Title: Trihydroxy polyoxyalkylene ethers of glycerol
IPC: C10M145/34
Filed: 1951-08-14
Abstract: Trihydroxy poly-(oxyethylene-oxy-1,2-propylene) ethers of glycerol are prepared by condensing with glycerol a mixture of 20-80 mol. per cent of ethylene oxide and 80-20 mol. per cent of propylene oxide until an average of at least 8 mols. of alkylene oxide have been combined with each mol. of glycerol.  The products are mixtures of varying molecular weight with random distribution of the oxyalkylene groups.  Condensation is preferably carried out at 100-140 DEG  C. at less than 70 lbs./square inch pressure in presence of an alkaline catalyst, e.g. an alkali metal hydroxide or alcoholate.  The products are useful as hydraulic fluids, lubricants, thickening agents, for treating textiles or in cosmetic preparations.  Reaction is preferably performed in an inert atmosphere, e.g. nitrogen.  The products may be diluted with water and freed from catalyst by passage through beds of ion exchange material.  They are then purified by distillation.  Alternatively the product may be diluted with a solvent, e.g. benzene, toluene, or carbon tetrachloride, the catalyst neutralized and the product washed with water at raised temperature and pressure to maintain the liquid phase.  The examples describe the preparation and physical properties of products with an average number of oxyalkylene groups/glycerine molecule varying from 8 to 300.  Specification 577,707 is referred to.
Patent GB-607961-A (GB)
Title: Improvements in stereoscopic kinematography
IPC: G03B35/00
Filed: 1945-07-26
Abstract: 607,961. Stereoscopic kinematography. SAVOYE, F. July 26, 1945, No. 19208. Convention date, Oct. 8, 1942. [Classes 97 (i) and 98 (ii)] [Also in Group XXXVIII] The elements of a line screen are arranged in the form of a frustum of a rotating cone with apex (Fig. 1) in the plane S1S2 containing the eyes of the spectators. As shown, they are mounted between wheels R, r of different sizes driven in synchronism with the projector P. Left and right eye pictures are projected from the projector P by reflection from a mirror m through the lower part G1 of the grid on to the screen E. They are viewed through the upper part G2 of the grid. The image 3 of the projector lens in the mirror m also lies in the plane S1S2. The spaces between the opaque bars of the grid may be parallel sided. The Specification as open to inspection under Sect. 91 describes a film with pairs of left and right eye images disposed side-by-side on a normal film with their bases adjacent on the longitudinal centre line of the film. A continuous feed projector has the projection system inside a mirror drum and the image forming beams after reflection from the mirrors in the drum are reflected out of the drum, and then perpendicular to the drum axis on to the screen by prisms. Alternatively, the left and right eye view images may be of normal frame size and appear alternately on the film, one member of each pair being separated from its companion along the length of the film. Such a film may be projected by the arrangement of Fig. 13 (Cancelled) in which it is moved intermittently and successively behind objectives O1, 02 to project left and right eye images respectively. A pair of prisms 40, 42 is rotated intermittently in 90 degrees steps to reflect light from the source 10 on to left and right eye images successively from prisms 43, 44 through condensers C2, C1. Two Maltese cross mechanisms are used to feed the film, each feeding two frames at a time, the feeding movements of the two mechanisms alternating. A similar arrangement may be used for a camera, the film being in a position similar to the light source 10. In a modification, the prisms 40, 42, 43, 44 are all replaced by mirrors rotating synchronously. Also described is a film carrying, in addition to side-by-side left and right eye view images, two sound tracks, at one side of the film, for operation with separate loudspeaker systems to produce acoustic relief effects. For reproduction the film passes round a drum containing a lamp, the light beam from which is split by prisms into two parts passing through the two tracks. The sound tracks may occupy the space normally occupied by one row of perforations and perforations provided instead, at this side of the film, between picture frames. A stereoscopic projection system using a plane line screen with tapering elements is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-941333-A (GB)
Title: Lumber saw attachment for chain saws
IPC: B27B17/00
Filed: 1961-05-29
Abstract: 941,333. Sawing. E. A. HAYDEN. May 29, 1961, No. 19256/61. Heading B5L. A chain saw 10 is provided with an attachment 13 having adjustably-positioned rollers 29, 30, 38, 40 for engaging on opposite sides of a guide G attached to a flat surface L of the log or to a board positioned on the rough surface of the log, so that boards can be sawn from the side of the log as the saw is guided along its length. Cross-members 26, 35 carrying the rollers are adjustably held in a slot 13c in an extension 13b of the attachment by bolts 27, 36. Additional rollers 15, 16, 17, 47, 48 engage the top of the log and the rollers 47, 48 have a slight amount of vertical adjustment. Bolts 14 secure the attachment to the saw bar 11 at such an angle that the saw tends to feed itself into the log. A plate 56 and flexible flap 58 deflect particles cut by the saw.
Patent GB-294373-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/26
Filed: 1927-07-20
Abstract: 294,373. Smith, D. J. July 20, 1927. Producers. - In a down-draught producer for use with fuels of high-volatile, content, such as wood or lignite, air is admitted through openings k and warmed by passage through an annular space j, from which it enters a shallow combustion zone x at the bottom of the fuel hopper a. When gas is drawn off from the outlet l, the main portion of the gas passes through perforations p in a grate c, impinges on a cone e and is deflected bv a cone d<1> up the inside of an upturned portion d where it is met by the hot portion of the gas passing through the slots in the portion d from the hottest part of the fire. The volatiles in the gas are cracked by contact with the hot cone e and by mixture with hot gas passing through the portion d, and the gas is purified in annular chambers o filled with filtering material. Steam may be generated in a jacket r and supplied by pipes t and v to the incoming air.
Patent GB-717288-A (GB)
Title: Improvements in and relating to selective signal transmission systems
IPC: G11B5/02
Filed: 1952-07-31
Abstract: 717,288. Electric digital data storage apparatus. GENERAL ELECTRIC CO. July 31, 1952 [Aug. 1, 1951], No. 19401/52. Class 106 (1). [Also in Groups XXXIX, XL(b) and XL(c)] An electrical signalling system wherein a single channel can be connected selectively to any one of a plurality of other channels comprises a first pair of terminals 1, 2 across which is connected a resistance network 9, 10, 11, a plurality of second pairs of terminals 5, 6 across each of which is connected a tapped resistance network 13, 14, a plurality of similarly poled undirectionally conducting devices 16, 17 connected respectively between terminals 1 and 5 and between terminals 2 and 6 as shown and means for so biasing the tapping point 15 on any one of the resistance networks 13, 14 with respect to the tapping point 12 on the network 9, 10, 11 that the corresponding pair of devices 16, 17 are rendered conductive and a transmission path, in either direction, is established between the corresponding terminals 5, 6, and the terminals 1, 2. By virtue of the potential drop across the two halves of the network 9, 10, 11 due to the current flowing through one pair of devices 16, 17, the remaining devices are all biased in the high resistance direction and thus remain cut off. As shown, switches 19 associated with batteries 18 apply the bias potential between points 15 and point 12 ; as applied to a digital computer wherein signals are recorded on or picked up from a magnetic storage drum by means of magnetic heads 8, the batteries and switches are replaced by automatically controlled electronic circuits. The devices 16, 17 may comprise thermionic diodes, contact rectifiers or crystal rectifiers.
Patent GB-262371-A (GB)
Title: Improved polish and waterproofing composition and process for the manufacture thereof
IPC: D06M13/02
Filed: 1925-08-06
Abstract: 262,371. Thompson, C. H., and McGivern, W. J. Aug. 6, 1925. Emulsions, making.-An emulsion for use as a polishing or waterproofing composition, or as a binder for briquettes &c., is made by mixing paraffin, ceresin, or like non-saponifiable mineral wax with a fatty acid or resin, melting the mixture, and emulsifying it with an aqueous solution of an organic colloid and alkali. Oleic or stearic acid may be used, and as the colloid, albumen, glue. or casein together with caustic soda or potash may be employed. The Provisional Specification describes also the like treatment of saponifiable waxes such as carnauba, Japan wax, or beeswax.
Patent GB-938577-A (GB)
Title: Fan or impeller
Inventor: RODWAY ROWLAND
IPC: F04D29/28
Filed: 1962-05-23
Abstract: 938,577. Centrifugal fans. PLASTIC FAN CO. Ltd. May 23, 1962, No. 19788/62. Class 110 (1). In the fan impeller described in Specification 718,751, the shroud ring interconnecting the free outer edges of the. blades for the purpose of stiffening them is replaced by struts 9 each from a point near that radial edge of one of the blades 4 that is remote from the back disc 1 to a point on the disc near the line on which the adjacent blade engages the disc. The strut 9 is a rod or tube, welded or bonded at its ends to the blade 4 and disc 1 and preferably of the same plastics material, such as polyvinyl chloride, as the blade and disc. Preferably, each strut 9 is inclined at roughly 45 degrees to the plane of the disc 1, as shown in Fig. 2, and extends in a substantially tangential direction when viewed as in Fig. 1. As in the impeller described in Specification 718,751, the shaft and other metal parts are shielded from the corrosive gases being handled by means of the conical impeller hub 2 and a sleeve (not shown) projecting from the rear of the disc 1, the hub and sleeve being of plastics material.
Patent GB-827898-A (GB)
Title: Improvements relating to hoppers
IPC: B28C7/00
Filed: 1957-06-25
Abstract: 827,898. Sand and gravel hoppers. COOPER, J. R., [trading as HOLLY LANE ENGINEERING]. June 25, 1958 [June 25, 1957], No. 19934/57. Class 78 (1). Sand and gravel are deposited by lorries respectively on inclined receiving channels 101, 102 and as required, are moved up the channels by power shovels to fall into shoots 104, 105 controlled by hand-operated sliding gates 111, 112. When a gate or gates has been opened, pivoted deflector plate 14, which in its normal position is biased upwards, as shown, is depressed by hand to form an extension of the shoots to guide the material into vessel 18. Agitating (Fig. 3).-Each gate 111, 112 carries spikes 161 so that, as the gate is moved, the spikes agitate the material.
Patent GB-460828-A (GB)
Title: Shifting means for automatic change speed gears
IPC: F16H61/02
Filed: 1935-07-29
Abstract: 460,828. Controlling change speed gearing. SCHOU, C. E. J. July 29, 1935, No. 19968/36. Divided out of 460,770 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 29, 1936. [Class 80 (ii)] Controlling-means for change-speed gearing in which stepped speeds are changed by means 21, Fig. 2, responsive to load torque and means 25 responsive to engine speed comprises a resilient stop 36, Fig. 3, which prevents the torque responsive means 21 alone from effecting a change down, such change being effected by the aid of a spring device 24 responsive to and acting upon the slowing down of the engine. The gearing shown is of the countershaft type like the arrangement described in Specification 460,770, and comprises a triple clutch C like that described in Specification 457,023. The torque responsive device shown is a helical gear 21 sliding on a ball spline 27, Fig. 3, on the driven shaft 10 and driven from a countershaft pinion 20, Fig. 2, like the arrangement described in Specification 460,827. The helical gear 21, since it takes no load on direct drive, cannot initiate changing down out of direct drive. In direct drive the triple clutch C is rotating solid, there being overrunning clutches to allow of this. The effect of increased torque is to slow down the engine shaft 1 until flyweight 25 can no longer hold off springs 24 which assert themselves to thrust a control sleeve 23 of the clutch C to the left of Fig. 2 far enough to set the thirdspeed clutch 7 slipping. Load now comes on the gear 21 which moves right completing the change-down by causing a stem 30 to move left until a shoulder 34 comes against the stop 36. This movement of the stem 30 has fully disengaged the direct-drive clutch 7 so that the second speed alone is in action. On the load increasing farther, the torque gear 21 presses farther to the right but the stem 30 cannot move left to change down into first because the springs 40 of the stop 36 are too strong. Excessive load, however, slows the engine down so that the springs 24 preponderate over the flyweight 25 to the extent of assisting the torque gear 21 to overcome the stop 36 so as to thrust the sleeve 23 left to disengage the second speed clutch 8, whereupon the speed falls to first. Changes up are the same in reversed order.
Patent GB-479998-A (GB)
Title: Improvements in x-ray devices
IPC: G21K1/04
Filed: 1937-07-19
Abstract: 479,998. Radiographic shutters. PHYSIKALISCH TECHNISCHE WERKSTATTEN GES. July 19, 1937, No. 19987. Convention date, July 18, 1936. [Class 98 (i)] The shutter in the radiation window of an X-ray device is controlled by an electrical circuit which includes contact members connected to the guiding frame of a filter and to the filter so that the shutter can only be operated when the filter is inserted. The X-ray aperture is closed by a lead plate 4 which with a counterweight 6 rotates on a shaft 5. The armature 10 of an electromagnet 11 is connected by a rod 9 to the toothed rack 7 which meshes with a spur wheel 8 on the shaft 5. The electromagnet can open the shutter against the attraction of a spring 12. The energizing circuit of the electromagnet includes one contact member 13 insulated from but mounted on the filter casing, which member is connected to the casing by contacts on the filter when the latter is in position. Contact springs 19, 20 are adapted to be engaged by a pin 21 and close circuits with lamps which indicate the " open " and " closed " positions of the shutter. In the circuit arrangement, Fig. 3, one winding of a transformer 22 supplies the shutter signals 46, 47 and the illuminated signs 24-28 associated with filter contacts 14-18. The other secondary winding supplies a rectifier arrangement 29 which feeds the electromagnet 11 and a relay 33. When a push-button 30 is depressed and the filter is in position closing the contact 13, a circuit is closed through the electromagnet 11 which opens the shutter. Simultaneously, current flows through a resistance 34 and the relay 33 to close the contact 35 of the relay and maintain the supply to the etectromagnet and relay through a resistance 36. The circuit is de - energized by shortcircuiting either manually through the pushbutton contact 37, or automatically through the contact 37<1> which is controlled by a synchronous motor 40. The circuit of the latter is closed by a contact 39 in the relay 33. Connection of the control circuit to a dosimeter may be made through a contact 38. A manual device for opening the shutter in case of need is a key 41 fitting into a bore 42 of the rod 9. The key is locked with the rod 9 in the " open '' position, by turning so that a pin 43 lies athwart its entrance plate 45.
Patent GB-148121-A (GB)
Title: Improvements relating to theatres
IPC: E04H3/22
Filed: 1920-07-09
Abstract: 148,121. Bernau, A. Dec. 31, 1913, [Convention date]. No Patent granted (Sealing fee not paid). Stages, construction of.-Relates to theatres provided with an annular stage surrounding the auditorium, and consists in providing a movable segmental stage outside the annular stage to give increased depth. As shown in Fig. 1 the segmental stage d is made in one piece and is movable so that any one of its three sections can be brought in position behind the part f of the annular stage c which is in use. In a modification the stage d is made in three parts, the middle one being arranged so that it can be lowered to allow either one of the lateral parts to be brought into position.
Patent GB-516970-A (GB)
Title: Improvements in and relating to daylight photographic developing tanks
IPC: G03D13/06
Filed: 1938-07-07
Abstract: 516,970. Photographic developing apparatus. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.). July 7, 1938, No. 20135. [Class 98 (ii)] A daylight developing tank has a developing reel consisting of two spirally grooved discs held by a common axle at a distance apart less than the width of the film to be developed, a clip connected with the axle by a band and adapted to hold the free end of the film in the arched form necessary to enable the film to enter the spiral grooves, and a device situated between the film spool and the developing reel which maintains the arched form of the film as it as being wound on the developing reel. As shown in Fig. 1 the housing 1 is divided by the partition 1a into the spool chamber 2 and the developing chamber 3, and is closed by the lid 4. The spirally grooved discs 6 are mounted on the axle 5 to which is attached a band 10, Fig. 4, carrying a clip 9, having teeth 9a and lateral extensions 9b arranged to arch the film 7. A fork having two prongs 4a attached to the lid 4 prevents alteration of the arching of the film 7 caused by the clip 9.
Patent GB-575758-A (GB)
Title: Improvements in or relating to diamond or like tools
IPC: B23P5/00
Filed: 1944-10-18
Abstract: 575,758. Diamond &c. tools. CORONEL, M. Oct. 18, 1944, No. 20180. [Class 124] [Also in Group XXII] In a diamond or like tool, a parallel-sided transverse slot 1 is formed in the end of a steel shank 2 and compressed to sub. stantially the shape of a diamond 6 fitted in a transverse slot 9 in a wedge-shaped bar 8 which is forced from one end into the compressed slot and then brazed in position. The compression of the slot 1 may be effected by means of a hard steel bar of substantially the same cross-sectional shape as the bar 8, which latter is of the same length as the slot 1 and the upper side of which lies substantially flush with the end 7 of the shank.2.
Patent GB-1464221-A (GB)
Title: Disc brakes
IPC: F16D55/227
Filed: 1975-05-14
Abstract: 1464221 Sliding caliper disc brakes FORD MOTOR CO Ltd 14 May 1975 20237/75 Heading F2E Removal of one of the pins 22, 52 which constitute the sliding connection between caliper 8 and fixed support 10 permits the caliper to be pivoted about the other pin for removal of the pads 30 which are housed between arms 11, 12 of support 10. The pin 22 serving as the pivot may be of the form shown in Fig. 3, groove 24 co-operating with a grub screw 41, extending through a boss 40 formed on the caliper, to limit axial movement of the caliper. The groove may alternatively be formed in a sleeve around the pin and boss 40 may also have an internal sleeve (Fig. 4, not shown).
Patent GB-415254-A (GB)
Title: Improvements in high-draft apparatus for spinning machines
IPC: D01H5/28
Filed: 1933-07-18
Abstract: 415,254. Drawing apparatus for spinning-frames. HARRIS, T., 109, Hazard Avenue, Providence, Rhode Island, U.S.A. July 18, 1933, No. 20244. [Class 120 (ii).] High draft mechanism comprises successive pairs of rollers adapted to draw the material and to impart a false twist thereto in opposite directions between successive pairs. A number of platforms 11-16 are supported on standards 17 and carry the pairs of rollers, the first and last pairs 26, 82 being mounted for simple rotation in bearings on stationary plates, and the other pairs mounted for rotation in plates which themselves are rotated by suitable gearing in alternate opposite directions to impart successive opposite false twist. The pressing-roller of each pair is mounted in a spring-pressed bracket adapted to be reciprocated from the driven roller by cam and lever mechanism to prevent grooving of the rollers. The plates can be adjusted on the standards 17 to vary the distance between the nips.
Patent GB-604222-A (GB)
Title: Improvements in and relating to poppet valves and methods of making the same
IPC: F01L3/14
Filed: 1945-08-08
Abstract: 604,222. Making poppet valves. EATON MANUFACTURING CO. Aug. 8, 1945, No. 20280. Convention date, May 13, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVII] Welding.-A poppet valve comprises a stem 10 integral with a head 14 and formed with a blind bore 16 containing sodium or other coolant, and a curved resilient plug 22 welded under pressure on to the chamfered end 20 of the bore. In forming the valve, the stem and head may be forged, and after welding, the plug 22 is machined flush with the head 14. The chamfer 20, and hence the weld, is of greater width than the thickness of the plug 22.
Patent GB-1325130-A (GB)
Title: Apparatus and method for hologram formation
IPC: G03H1/00
Filed: 1972-05-02
Abstract: 1325130 Holography UNITED AIRCRAFT CORP 2 May 1972 [30 March 1972] 20384/72 Heading G2J In the formation of holograms the reference beam 29 is focused on to a diffusely scattering surface 30 having the same vibratory motion as the object 22. Preferably the reference beam is diffusely scattered by being focused on to a portion of the object itself which is outside the field of the object beam. The object beam may be collimated (after expansion) before impinging on the object, and then the central axis of the reference beam being focused on the object is aligned parallel to the collimated object illuminating beam.