baber/WOPTO huggingface dataset:
Patent GB-916155-A (GB)
Title: Improvements in helical gear pumps
IPC: F04C2/107
Filed: 1960-10-13
Abstract: 916,155. Rotary pumps. NETZSCH, E., [trading as NETZSCH MASCHINENFABKIK GEB.]. Oct. 13, 1960 [Oct. 13, 1959], No. 35138/60. Class 110 (2). A helical gear pump comprises a housing having central, inlet and discharge sections a, b, c, Figs. 1 and 2, a stator d of, e.g., rubber, and a rotor e, wherein the rotor and stator have a different number of threads, the external diameter of the rotor and the corresponding internal diameter of the stator increase from one end to the other and the rotor and stator are axially adjustable with respect to each other and thence lockable after adjustment to compensate for any inaccuracies in the parts, e.g., due to wear. As shown in Fig. 1, keys g between the rotor e and its drive shaft f permit axial movement of the rotor on rotation of a member m screw-threadedly engaging the rotor. A lock-nut p locks the parts in adjusted position. As shown in Fig. 2, the stator is housed in a casing p having flanges w 1 , w 2 , one of which, w 1 , is in threaded engagement with the central housing section a. Q clamping ring s, casing flange t and packing and cover rings u, v together with screws secure the stator to the casing p. In this case, the insertion of a tool into a hole y permits rotation of the casing r and axial adjustment of the casing and stator. A set-screw Z locks the parts.
Patent GB-939564-A (GB)
Title: Improvements in or relating to change-speed gearboxes for motor vehicles
IPC: F16H59/04
Filed: 1962-09-14
Abstract: 939,564. Change speed control. ZAHNBADFABRIK FRIEDRICHSHAFEN A.G. Sept. 14, 1962 [Sept. 14, 1961], No. 35179/62. Class 80 (2). In a step-by-step gear shift mechanism having a shift element for each ratio and a shift lever having either a finger or a toothed segment engaging a toothed segment or a finger respectively, the lever has a movement in a first direction in the plane of the segment limited to one tooth space for each ratio after movement in a second, perpendicular, direction in one sense and continuous movement in the first direction after movement in the second sense of the second direction to engage the neutral tooth gap. Pivoting movement of the gear shift lever 21 about a pivot 22 in a first sense raises the finger 25 from engagement with a toothed segment 26 having shift pins 31 of shift elements 32 projecting into the gaps in the segment. The lever may then be rotated about a pivot 23 to an extent equal to one tooth limited by a detent 27, loaded by springs 27c, engaging a corresponding toothed segment 27a, the lever then returns to the mid-position under the influence of spring detents 24 for the finger 25 to enter the adjacent tooth space of segment 26 and actuate the next shift pin and element. Movement of the lever 21 in the opposite sense about pivot 22 releases the finger 25 from the segment 26 and causes the bevel edged detent 29 to ride over a locking member 30 which prevents return of the lever detent 24 except when the detent 29 is opposite a gap in the member 30 corresponding to the neutral shift pin. In a second embodiment, the lever is restricted to movement equivalent to one ratio by a pivoted locking bolt engaging the toothed segment 26 and limited in its pivoting movement to one tooth space. In a third embodiment, Fig. 8, upward movement of the end of the lever 81 releases a roller 82 from a shift pin 107,- and engages a pin 84 with a slot in a plate 85 having an aperture 86 engaged by a fixed member 87 to limit horizontal pivoting movement to one tooth space. On release of the lever 81, the roller 82 returns to contact the adjacent shift pin under the action of spring-loaded levers 97, 98. A neutral detent 90 allows the selection of neutral from any ratio after downward movement of the lever 81 and an electromagnetic stop 105 may prohibit entry into undersirable ratios at high speed.
Patent GB-301800-A (GB)
Title: Improvements in meat paste and method of making the same
IPC: A23L13/50
Filed: 1928-11-29
Abstract: 301,800. Dyer, R. W. Dec. 5, 1927, [Convention date]. Meat preparations ; cooking fowls. - A meat paste is made by cooking domestic fowls with a small quantity of water in a steam-jacketed closed kettle and raising the temperature to about 260‹ F. for 2-3 hours or to a lower temperature for a longer period; the gelatinous material is thus dissolved from the bones, and the resultant mass consisting of cooked flesh, marrow, and softened bones is ground and mixed up. The cooking is carried out under conditions which will keep the birds saturated with the meat juices. The Specification as open to inspection under Sect. 91 (3) (a) refers to the grinding of the birds before cooking. This subiect-matter does not appear in the Specification as accepted.
Patent GB-367803-A (GB)
Title: Improvements in or relating to electric controllers and switches
IPC: H01H19/62
Filed: 1930-11-22
Abstract: 367,803. Rocking bar controllers ; switch contacts. ELLEFSEN, O., Duchray, Cippenham Village, Slough, Bucking- hamshire. Nov. 22, 1930, No. 35253. [Classes 38 (iii) and 38 (v).] In a hand or power operated cam controller, the cam members 1, Fig. 1, and the endplates in which the spindles carrying the cams, and the fixed and movable contacts 8, 9 are mounted, are formed as stampings or pressings. When a spindle 7 is rotated, a cam 3 acts on a roller carried by a stamped or pressed lever 13, to separate contacts 8, 9 against the action of a spring 21. In a modification, Fig. 3, the lever 13 is in two parts, one part which carries the cam roller 15 being pivoted to a clamp member 20 at 23, and the other which carries the movable contact 9, being pivoted on the roller carrying part at 22. Thus when the cam spindle 7 is rotated, the roller carrying part rotates slightly about its pivot 23, and in moving the pivot 22, causes a rubbing and cleaning action between the contacts 8, 9. Upon further rotation of the spindle 7, both parts of the lever 13 move together against the action of a spring 21, to separate the contacts 8, 9. A number of cams, and corresponding switch contacts assembled to form the complete controller, are mounted in a pressed casing, having a removable cover with pressed steel handles spot welded thereto. A blow-out coil, and separating barriers may be fitted at the contacts.
Patent GB-954689-A (GB)
Title: Improvements in or relating to cleaning systems for textile fibre drawing apparatus
IPC: D01H5/62
Filed: 1961-09-29
Abstract: 954,689. Roller clearing. LUWA A, G. Sept. 29, 1961 [Oct. 3, 1960], No. 35270/61. Heading D1D. A roll 20 and a belt 12 of a drafting mechanism are each cleared by a stripper 19 or 11 which is supported on a carrier 16,17 or 8, 9 pivotally mounted at 15 or 7 such that the friction between the stripper and the roll or belt exerts a torque on the carrier which tends to keep the stripper in contact with the roll or belt. As shown the strippers are arranged in a duct 1 adjustably mounted in a suction tube 2 so that fly dislodged by the strippers is sucked away. The pivot 7 for the carrier 8, 9 is mounted on a plate 3 rigidly fixed in the duct 1, the plate 3 also carrying a stationary stripper 4 for the front roll 5. The carrier 16, 17 for stripper 19 is pivotally mounted at one end on the carrier 8, 9 and at the other end on a plate 22 loosely pivoted about a pin 21 mounted in the suction duct. The carriers 8, 9 and 16,17 are each in two parts and are joined by screws 10, 18 so that the overall lengths and therefore positions of the strippers are adjustable. The strippers 4,11 and 19 and the members 8,16 and 22 are so relatively positioned that suction slots 24, 25, 26 are formed to remove fly from the vicinity of the strippers. In a further form the stripper carriers are pivoted about spindles mounted in the duct; alternatively the stripper carriers may be formed as pivotable yokes secured to the inner face of the top of the duct. If the strippers are employed independently of the suction means they may be adjustably secured to a common support or to roll bearing blocks or to brackets supporting the drawing apparatus.
Patent GB-1084890-A (GB)
Title: An improved egg receiving tray for a hen battery
IPC: A01K31/16
Filed: 1965-08-18
Abstract: 1,084,890. Egg trays for battery cages. J. CLARKE and C. A. HELLYER. July 20, 1966 [Aug. 18, 1965], No. 35330/65. Heading AIM. An egg-collecting tray adapted to be mounted in front of a battery cage or a series of cages is formed or provided with means to slow down the eggs as they roll from the cages. A tray 21 of sheet metal or synthetic plastics material is formed with a plurality of holes 26 which are too small to permitt eggs to pass therethrough but slow down the eggs as they roll along the tray. The side margins of the tray are formed with flanges 23 which hook over wire extensions 14 of the floor 13 of the cage and the rear edge of the tray is supported between the ends of the longitudinal wires 15 of the floor, alternate wires 15 being bent downwardly at the ends out of the plane of the floor. The tray may be formed with upstanding ridges to reinforce the tray and provide guides for the eggs.
Patent GB-1216962-A (GB)
Title: Process for producing alumina of low residual nitrate content from basic aluminium nitrates
Inventor: KELLY DONALD HOYT
IPC: C01F7/308
Filed: 1969-07-14
Abstract: 1,216,962. Alumina. ALLIED CHEMICAL CORP. 14 July, 1969 [21 Nov., 1968], No. 35423/69. Heading C1A. Alumina is made feeding to a fluidized bed solid particulate basic aluminium nitrate of formula Al 2 O 3 .pN 2 O 5 . 3 H 2 O where p is 1À2-1À65 and z is 3À64-7À21, and maintaining the nitrate in the bed at a temperature of at least 470 C. until the resulting alumina contains not more than 0À02 mole of N 2 O 5  per mole of Al 2 O 3 . The basic aluminium nitrate is that which has been obtained by (i) heating aluminium nitrate nonahydrate under superatmospheric pressure at a temperature high enough to cause decomposition but not above 230 C., and for a time until 45-60% of the nitric acid values originally in the nitrate have been removed as gaseous decomposition products; (ii) reducing the pressure to atmospheric or below; (iii) cooling the molten residue from (ii) to below its softening point. The fluidizing gas may be N 2 , and the particulate basic aluminium nitrate is preferably of a size that passes through a 40 mesh, but is retained on a 100 mesh screen (U.S. standard). The resulting alumina, whichis partly in the form of hollow spherules, is calcined to alpha-alumina at temperatures of :at least 1000 C.
Patent GB-945870-A (GB)
Title: Improvements in or relating to a rotary slotting apparatus
IPC: B26D1/24
Filed: 1962-09-18
Abstract: 945,870. Slotting-apparatus. KOPPERS CO. Inc. Sept. 18, 1962 [Oct. 27, 1961], No. 35550/62. Heading B4B. Apparatus for slotting box blanks comprises a pair of rotatably-driven shafts 16, 17 upon which are adjustably mounted coacting slotting heads 13, 14, the head 14 having a pair of spaced-apart cutting discs 12 between which projects a blade 11 mounted at the periphery of the head 13 and comprising leading means 37 for guiding the blade between the discs, aligning means 38 for automatically aligning the blade and discs upon every revolution of the blade and cutting means 39 for slotting the blanks without metal-to-metal contact between the cutting means and discs. Each blade 11, Figs. 2 and 4, which may be formed in two segments 32, 33 as shown, or as one unit, has a tapered lead-in portion 37 including an outwardly-extending spur, a rectangular crosssectional portion 38 corresponding in width to the distance between the discs 12, a cutting arc 39 which is of reduced rectangular crosssectional area and a tapered transition portion 41. Pre-adjustment of the heads along the shafts 16, 17 may be effected manually or mechanically, followed by securing by means of bolts 43. During operation of the apparatus, any misalignment owing to axial displacement of the shafts is automatically corrected by the segment 32 on entering between the discs 12.
Patent GB-970149-A (GB)
Title: Gaseous filter indicator devices
IPC: B01D46/42
Filed: 1963-09-10
Abstract: 970,149. Clogging of filters. GENERAL MOTORS CORPORATION. Sept. 10,1963 [Oct. 18, 1962], No. 35657/63. Heading BIT. An internal combustion engine air filter consists of a filter element 38, e.g. polyurethane foam, mounted between shells 10, 20 in the air flow through the inlet and outlet 44, 16 respectively. The side wall of shell 20 supports the indicator 48, containing a filter 54, of similar material to 38, so that air flowing through it, into space 46, causes it to accumulate dirt at the same rate as the main filter. In alternative forms, not shown, the indicator may have a modified shape to provide different viewing facilities or the indicator can be mounted on a removable plug.
Patent GB-873804-A (GB)
Title: Building material compositions
IPC: C04B24/42
Filed: 1958-11-06
Abstract: A building material composition comprises 0,1 to 5% of an alkyl polysiloxane powder of a grain size below 1 micron.  The polysiloxane may be mixed with an inert powder e.g. cement, lime, sand, a pigment, chalk, talcum, kieselguhr, silica or a salt of a higher fatty acid, (e.g. one of the components of the building composition) before admixture with the remainder of the composition.  The alkylpolysiloxanes are products of hydrolysis and condensation of liquid alkylhalosilanes and mixtures containing them which are known to give solid siloxane products by rapid hydrolysis and spontaneous condensation.  The polysiloxanes are added to mortars, concretes, asbestos cement, magnesia cement, gypsum, anhydrite or artificial stone compositions, and render them water repellant.  Specification 782,111 is referred to.
Patent GB-451825-A (GB)
Title: A method of and apparatus for taking cores from a drill hole
IPC: E21B25/02
Filed: 1935-12-27
Abstract: 451,825. Boring earth or rock. NAAMLOOZE VENNOOTSCHAP BATAAFSCHE PETROLEUM MAATSCHAPPIJ, 30, Carel van Bylandtlaan, The Hague. Dec. 27, 1935, No. 35846. Convention date, Jan. 23. [Class 85] In core-drilling wherein the drilled core is lifted through the drill pipe by the aid of the flushing liquid, while drilling the flushing liquid is passed down through and up around the drill pipe and for lifting the core, the direction of flow is reversed. In Fig. 1, the core barrel 4 is threaded into position and the bevelled upper end-carries a flap valve 5 opening upwards to permit the passage of the core. An annular valve 10, pressed by a spring 11, permits downward passage of the flushing liquid during drilling, but prevents upward passage of the liquid around the core barrel when raising the core. In Figs. 2a and 2b, the core barrel fits loosely within a guide tube 20 around which the valve 10 is arranged ; the head 21 of the core barrel carries a spring-pressed pawl 26 which engages a shoulder 27 in the drill pipe to hold the barrel during drilling. After drilling, the pawl is released by lowering a cylindrical member 32 which forces inwards the upper end of the pawl and engages below a lip 31 ; the flow of the flushing fluid is then reversed to raise the core and barrel together. The member 32 has a non-return valve 34 for upward passage of fluid and may also have a downwardly opening spring-loaded valve permitting cleaning of the member by the flushing liquid.
Patent GB-864771-A (GB)
Title: Improvements in or relating to junction transistors
Inventor: ROMAN GEORGE
IPC: H01L29/00
Filed: 1956-11-23
Abstract: 864,771. Semi-conductor devices. PYE Ltd. Nov. 18, 1957 [Nov. 23, 1956], No. 35905/56. Class 37. A method of making a junction transistor comprises dipping an acceptor or donor doped body later to form the emitter or collector zone, first in a melt of opposite conductivity type to form a base zone and then in a melt of the same conductivity type to form the collector or emitter zone. In one embodiment a rectangular slab 1 (Fig. 1) of N-type germanium is cut from a monocrystalline rod and after etching is dipped into a melt of acceptor doped semi-conductor which is allowed to crystallize on to the body to form a P-type layer 2. The composite body is then withdrawn from the melt and allowed to grow further from a second donor doped melt to form an N-type layer 3a. A transistor is made from the resulting body by grinding off the lower end of the layer 3a to expose layer 2, and making emitter, base and collector connections to the regions 1, 2, 3 as shown. In an alternative method the composite body is only shallowly dipped into the second melt to form a body as shown in Fig. 2 to which emitter, base and collector connections are made as shown. Each of the regions of different conductivity type may be made of graded conductivity by forming it in several stages by successively dipping into melts which crystallize to form subregions having the same conductivity type but different values of conductivity.
Patent GB-507926-A (GB)
Title: Improvements in and relating to extrusion apparatus
IPC: B29C48/475
Filed: 1937-12-29
Abstract: 507,926. Extruding rubber &c. R.P.R. ASSOCIATION, REDFARN, C. A., and SCHIDROWITZ, P. Dec. 29, 1937, No. 35971. [Class 87 (ii)] Materials, such as chlorinated rubber, which expand on extrusion are moulded in apparatus comprising an elongated cylindrical barrel 3 terminating at one end in a flared nozzle 7 and communicating at the other end through a divergent channel 10 with the cylinder 11 of a reciprocating plunger 12, means being provided to heat the barrel and nozzle and to feed the material into the cylinder 11. The material is supplied by a hopper 13 containing agitating prongs 16. The plunger 12 may be actuated hydraulically or by steam or, as shown, by a rocker arm 17 and spring 21 which are adapted to give a fast return stroke. The nozzle 7 and barrel 3 are heated by electric resistances 22, 23 respectively, the nozzle being detachable to provide access to the heaters 23. Thermostats 25 are provided to control the temperature at about 350 F. Cooling channels 27 are provided. round the cylinder 11. The expanded product is further shaped between metal bands 28 as described in Specification 486,124. Specification 424,561 also is referred to.
Patent GB-1080320-A (GB)
Title: Electrical transformers
IPC: H01F30/16
Filed: 1965-08-23
Abstract: 1,080,320. Transformers. SIEMENS SCHUCKERTWERKE A.G. Aug. 23, 1965 [Sept. 19, 1964], No. 36170/65. Heading H1T. A transformer has two primary windings 2, 20 wound on limbs 1 of a laminated iron core, and its secondary winding is formed by single turns 3, 30, one on each core limb, and connected in parallel. Each secondary turn comprises a sleeve-like portion gapped along its length, e.g. at 37, terminals 4, 5 being provided on opposite sides of one of these gaps. The parallel connections for the secondary turns is provided by walls 40, (41, Fig. 2) and walls such as 6, one at each end of the turns. The ends of the turns are closed by thinner metal walls (50, 51, Fig. 2, not shown). The transformer is mounted on legs 39 so cooling air can flow up between the walls 3<SP>1</SP>, 30<SP>1</SP>. The core may be spaced from the housing by insulating members. The spaces within the housing and the gap 37 may be filled with solid or liquid insulating material, e.g. resin.
Patent GB-917303-A (GB)
Title: Improvements in or relating to curtain pleating devices
Inventor: GRIFFITHS MARY
IPC: A47H13/16
Filed: 1960-10-22
Abstract: 917,303. Suspending curtains. FRENCH & SONS Ltd., THOMAS. Oct. 23, 1961 [Oct. 22, 1960], No. 36305/60. Class 52 (5). A combined curtain hook and pleat forming and holding device 11 comprises a plurality of turnover hook formations 11a having a common connecting member 11b. The hooks 11a and the connecting member 11b may be formed integrally from metal sheet by stamping and bending.
Patent GB-1003498-A (GB)
Title: Improvements in and relating to a pivot bearing for pivoted windows
IPC: E05D7/085
Filed: 1963-09-16
Abstract: 1,003,498. Window pivots. ATVIDABERGS INREDNINGAR A. B. Sept. 16, 1963 [Sept. 17, 1962; Nov. 16, 1962], No. 36409/63. Heading E2F. A pivot bearing for pivoted windows comprises a first bearing part 1 mounted on the window frame having a grooved bearing block 3 and a second bearing part 2 mounted on the window wing having a trunnion 9 and guide member 10, such that on opening the window the trunnion presses aside friction plates 7 against frictional resistance and the window rotates about the journal 8 in the block and on further opening the window rotates about the trunnion, the guide member running in grooves 11 and 12 in the block during rotation. The friction plates are substantially sector shaped and disposed within slots 13 in the block which are compressed by a spring 17 adjustable by screw 16. Curved slots 14 accommodate the screw. On initial opening from the closed position of Fig. 1, the trunnion moves down through bearing groove 19 as the window rotates about journal 8 and the guide runs in the guide groove 11. When the trunnion reaches its limiting position at the end of groove 19 (Fig. 3) the window rotates about it and the guide runs in groove 12. Guide grooves 11 and 12 have centres of curvature at the journal axis and the limiting position of the trunnion axis respectively. The bearing groove 19 has centre of curvature at the journal axis. A T-shaped member may be provided, the end of the shaft of which may bear on the trunnion when its cross-bar is depressed by the guide member 10 so that the trunnion is still retained in its limiting position when the window is opened more than 90 degrees. The bearing body 6 of the block 3 may be made of synthetic plastic material.
Patent GB-360127-A (GB)
Title: Flue gas washing and purification with means for minimizing effluent
IPC: B01D53/50
Filed: 1930-12-03
Abstract: In the washing of flue gases containing a low percentage of sulphur dioxide and trioxide, the gases are treated with a suspension of milk of lime, the sulphur being precipitated as insoluble compounds of lime.  In a two-stage process, sufficient lime is present in the first stage only to form calcium bisulphite and bisulphate, the normal salts being precipitated in the second stage on addition of further lime.  Carbonates of lime may replace milk of lime in the washing liquor.  Specification 311,249, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-1303206-A (GB)
IPC: F15B13/042
Filed: 1971-08-03
Abstract: 1303206 Valves G L REXROTH GmbH 3 Aug 1971 [4 Aug 1970 19 Nov 1970] 36506/71 Heading F2V Control of flow between a pressure source P, a tank T and two work ports A, B is effected with the aid of a main spool valve 1 operable under the control of an actuator 2, the actuator offering a high level of control sensitivity at the beginning of its control range. The main spool valve 1 is selectively connectible, at its ends, to a pressure source P and to a tank source T of the actuator by appropriate positioning of the actuator spools 31. On tilting the manual actuator 41, a piston-like member 39 is moved inwardly into the body of actuator 2 and so, by way of conical compression spring 32, moves the actuator spool 31. Initially, the resistance to deformation of the spring is small and so a sensitive control exists between actuator 41 and spool 31. Thereafter, the resistance increases and so the control sensitivity decreases. As the spool 31 is being moved towards its service port 33 or 34, the port is placed in communication with the actuator pressure source P which thus creates a pressure within actuator chamber 50 which acts on the actuator spool in a direction opposing spring 32. In modifications (Figs. 3 and 4, not shown), the single conical compression spring may be replaced by two helical springs which are of different length and are disposed one within the other. Alternatively, one helical spring may be used in which case the spring is disposed about two relatively movable abutments, the latter engaging one another and so overriding the spring at a stage in the actuation corresponding to the end of the sensitive range on the conical compression spring.