baber/WOPTO huggingface dataset:
Patent GB-1125741-A (GB)
Title: Steady flow peristaltic metering pump
IPC: F04B43/00
Filed: 1966-01-24
Abstract: 1,125,741. Rotary pumps. MILTON ROY CO. Jan. 24, 1966 [Jan. 25, 19651, No.3158/66. Heading F1F. A rotary peristaltic pump comprises a stationary drum 23, Figs. 2, 3, around which is stretched a diaphragm 14 to leave a pumping passage 17 therebetween and equally spaced rollers 12a, 12b, 12c, 12d mounted by means of cranks 13 on a drive plate 7 driven through reduction gearing by a motor. The diaphragm 14 is stretched circumferentially around the drum by means of clamping bars 30, 31 and screws 32. The bars 30, 31 extend the full width of the diaphragm 14 and are connected at their ends to clamping clips 18, 18a which are made in two halves secured together by screws 25 and formed with serration 24 to secure the diaphragm to the drum. The fluid to be pumped passes from an inlet 21 through a duct 41 into an inlet chamber 40. As the drive plate 7 rotates each roller in turn moves forward to constrict the passage 17 to push fluid before the constriction and draw in fluid behind it as the diaphragm is restored after a roller passes. When a roller reaches the position of roller 12a, i.e., the leading edge 47 of the outlet chamber 42, the roller moves to allow the constriction to be released. The outlet chamber 42 subtends an angle of 90 degrees corresponding to the spacing of the rollers and the arrangement is such that the rate of flow produced by the moving constriction is related to the rate of change of volume of the flow passage as the constriction is released to cause a constant rate of discharge from the pump. Intead of or as well as a constant rate of discharge, a constant rate of inflow into the pump may be arranged by dimensioning the inlet chamber 40 in the same way as the outlet chamber 42. The spindles on which the rollers are mounted are loaded by spiral springs to constantly urge the rollers against the diaphragm. The diaphragm is preferably made of stainless steel or an alloy of beryllium such as beryllium copper and coated with a layer of polytetrafluorethylene or polytetrafluorchloroethylene.
Patent GB-1183674-A (GB)
Title: Improvements in or relating to Steel.
IPC: C22C38/48
Filed: 1968-01-22
Abstract: 1,183,674. Steel. NIPPON KOKAN K.K. Jan.22, 1968 [Jan. 21, 1967], No.3252/68. Heading C7A. An austenitic heat resisting steel for boiler tubes comprises:- C 0À03 - 0À2% Cr 15À5 - 21% Ni 7 - 14% Si 0 - 1% Mn 0 - 2% Nb # 0À005 - 0À3  or Nb/Ta # 0À005 - 0À3 Ti up to 0À1 the balance, apart from impurities, being Fe.
Patent GB-824283-A (GB)
Title: Improvements in surface broaching machines
Inventor: POYNTER CYRIL EDWARD
IPC: B23D37/06
Filed: 1956-02-02
Abstract: 824,283. Broaching. WEATHERLEY OILGEAR Ltd. Feb. 2, 1956, No. 3366/56. Addition to 816, 102. Class 83 (3). In the machine claimed in Claim 2 of the parent Specification one or more of all the tools adapted to operate on the work in one direction of movement are omitted from the broach-bar, to permit at least one idle stroke in a cycle of operation. In a machine for broaching a slot in a turbine rotor rim 8, the work is moved transversely by hydraulic means 6, 7 while the broach bar 1 is reciprocated by hydraulic means 4. The broach P<SP>3</SP> may be omitted and the broaches P, P<SP>1</SP>, P<SP>2</SP> cut all in the same direction, the work 8 being moved to position D for each idle stroke. In a modified cycle, broaches P, P<SP>1</SP> may operate successively all round the work, which is indexed after every two cuts, the final cut in each slot being taken by the broach P<SP>2</SP> while the work is indexed round a second time. Other cycles are described in which different broaches are omitted.
Patent GB-175181-A (GB)
Title: Take-up mechanism for knitting machines
IPC: D04B27/34
Filed: 1921-01-27
Abstract: 175,181. Reynolds, F. P. Jan. 27, 1921. Addition to 156,377. Fabric take-up.- The fabric take-up arrangement described in the parent Specification is modified in that the pivotally - mounted frame described therein is dispensed with, while the drive shaft 7 which carries the upper clutch member 10 is not movable axially. The lower clutch member 9 is carried by the worm wheel 6 and is pressed upwardly by a spring 6<1>. As the tension on the fabric varies the worm is moved up or down on the shaft 7 and thus engages or disengages the shoulders of the clutch 9 with or from the tapered parts of the upper clutch member.
Patent GB-1502213-A (GB)
Title: Pressure operated isolation valve for use in a well testing apparatus and its method of operation
IPC: E21B34/10
Filed: 1976-01-28
Abstract: 1502213 Wells &c. HALLIBURTON CO 28 Jan 1976 [20 June 1975] 3384]76 Heading E1F A normally open valve 150 in the wall of a well bore test string is closed when the pressure in the well bore annulus above a packer (not shown) exceeds the pressure below the packer by a predetermined amount. As described the test string includes a normally closed ball valve 103 which can be opened to collect a sample of formation fluid by increasing the pressure of the fluid in the well bore annulus above the packer. The ball 103 is rotated by downward movement of a piston 124, one side of which is acted on by the fluid in the annulus via port 126. Downward movement of the piston 124 is opposed by spring 127 and by the pressure of an inert gas contained in chamber 128. Initially the pressure of the. gas in chamber 128 is equalised with the hydrostatic pressure in the annulus by means of floating piston 129, passage 130 and ports 152. The ports 152 can be closed by a valve 150 including sleeve 154 whose faces 158a and 159 are subjected to the pressure in the annulus above the packer and whose face 154b is subjected to the pressure below the packer via bore 122d and port 156. In use, as the string is lowered down the well bore the pressure of gas in chamber 128 is equalised with the hydrostatic pressure in the well bore: When the required depth is reached the packer is set, sealing off the formation to be tested. An increase in the pressure in the annulus above the packer moves the valve sleeve 154 to close ports 152 and thus prevent any further increase in the pressure of the inert gas. A further increase in the annulus pressure then shifts piston 124 to open valve 103 to collect a sample of the formation fluid. A reduction in pressure in the annulus then. closes valve 103 and re-opens valve 154.
Patent GB-212374-A (GB)
Title: Improvements in "loose leaf" binders
IPC: B42F13/04
Filed: 1923-02-06
Abstract: 212,374. Wells, H. G. Feb. 6, 1923. Flexible-band files; covers; clamping-devices.- In a loose-leaf binder of the thong type in which the thongs 7 passing through channels in the clamping-bars 3, 4 are attached at one end to a metal plate 1 and at the other to a cross-bar 8 operated by a screwed spindle 10, the covers are hinged to the clamping-bars by hinges, Fig. 7, consisting of a strip of metal having straight portions attached to the back and front of the cover and curved portions embracing the clamping-bars provided with annular grooves therefor. The key-operated end of the spindle is supported in a channel-shaped metal bearing 12, Fig. 6<a>, one side of which is straight while the other is curved and slotted to provide a seating for the key and for a lock.
Patent GB-209314-A (GB)
Title: A new or improved horse shoe
IPC: A01L7/02
Filed: 1923-02-07
Abstract: 209,314. Cheadle, F. J. Feb. 7, 1923. Integral c a l k s , trends, etc.; renewable treads. - A horseshoe comprises an upper metal plate a adapted to be nailed to the hoof and having one or more outwardly inclined projections b formed integral therewith at the inner edge of the plate. A non-slip pad of rubber, composition &c. may be secured to the plate by means of nails or side lips on the outside edge of the plate.
Patent GB-1038466-A (GB)
Title: Control device for adjusting the space position of a space vehicle
IPC: B64G1/26
Filed: 1964-01-29
Abstract: 1,038,466. Controlling space vehicles. BOLKOW G.m.b.H. Jan. 29, 1964 [Jan. 30, 1963], No. 3801/64. Heading B7G. A space vehicle is provided with two rocket motors 1, 2 mounted in gimbals 3 for thrust vectoring, and a further rocket motor or jet nozzle 5, 6 fixed to each motor 1, 2 for control purposes when the motors 1, 2 are inoperative. The motors 5, 6 are powered by liquid monopropellant 12a in a tank 12 (Fig. 2, not shown), divided by a diaphragm 11 and pressurized by a gas stored in a container 13 and fed to the part 12b of the tank. Alternatively, hypergolic or non-hypergolic fuel and oxidant may be used, or, where the motors 1, 2 are fed with pressurized fuel, the pressurizing gas, e.g. nitrogen or helium, may be discharged by the motors or nozzles 5, 6.
Patent GB-157652-A (GB)
Title: An improved hair comb
IPC: A45D24/30
Filed: 1920-02-07
Abstract: 157,652. Sacker, J. Feb. 7, 1920. Combs, hair.-A finetoothed comb adapted to remove nits from the hair, is made with separate teeth a, of rigid material, preferably metal, which may be thickened as at e to form the back portion of the comb, or spaced by the insertion of thin distance strips. The whole is secured by riveted pins c passed through the back portions of the teeth and the end plates b, or by soldering or welding instead of or in addition to the pins. The extended back portion is intended to provide a firm grip for the comb when in use.
Patent GB-218945-A (GB)
Title: Improvements in hand tools for cutting cloth or the like
IPC: B26B13/10
Filed: 1924-02-14
Abstract: 218,945. Miller, J. Feb. 14, 1924. Scissors. - In scissors for cutting cloth &c. with serrated edges, the serrations 4 in the blades are curved in arcs struck from the pivot 3, the cutting edges are slightly convex and the outer side 6 of each blade is slightly rounded into the operative surface 5 which is substantially flat and nearly at right-angles to the inner serrated face.
Patent GB-740117-A (GB)
Title: Means for directing coolant in the cylinder head of an internal combustion engine
IPC: F02B3/06
Filed: 1954-02-10
Abstract: 740,117. Cooling cylinders. CATERPILLAR TRACTOR CO. Feb. 10, 1954-. [Dec. 14, 1953], No. 3892/54. Class 7(2) In an engine having a cylinder head 10, Fig. 1, including a water jacket 11 and a cylinder sealing wall 12, a plurality of separate water directing members 17 are inserted in the wall 12 for directing a jet of water against the latter adjacent the main combustion chamber of the engine. The jacket' 11 is formed between the wall 12 an outer wall 13 and side walls 14 whilst openings 15, 15a are provided for the reception of a pre-combustion chamber, not shown. The tubular members 17 have outlets 30 that direct a fan-shaped jet of water on to the wall 12 and exhaust valve seat 38, which members 17 are forced into holes 21, Fig. 2. in the wall 12; a seal 22 being located between counterbores 23, 24, and the engine block 18. respectively. which seal is shielded by an annular element -26. The outlets 30 are formed by inturning a fan-shaped portion 29 of the side walls of each distributer. The cooling- water leaves the jacket 11 by a port 35, Fig. 1.
Patent GB-944221-A (GB)
Title: Reel structure
Inventor: GREENBERGER JOSEPH IRWIN
IPC: B21C47/30
Filed: 1960-02-03
Abstract: 944,221. Winding and reeling. UNITED ENGINEERING & FOUNDRY CO. Feb. 3, 1960, No. 3930/60. Heading B3E. [Also in Division F2] An expansible mandrel comprises a frame including a rotatable cartridge 18 and a non- rotatable frame member 36 surrounding the cartridge, a shaft 13 mounted in the cartridge with both ends thereof extending longitudinally outwards beyond the ends of the cartridge and with one end thereof extending beyond the frame, a plurality of segmental reel elements 12 mounted on and spaced circumferentially around the portion of the shaft which extends beyond the frame and movable radially outwards to an expanded position on axial movement of the shaft in one direction, bearing means 46, 47 mounted in the frame member entirely and rotatably supporting the cartridge, pressure means, e.g. a spring 49 intermediate the ends of the shaft and engaging the cartridge, at 53, and the shaft, at 51, and stop means 58, 59 secured on the shaft outwardly of the cartridge whereby on axial movement of the shaft by the pressure means 49 in a direction to expand the mandrel, the stop means 58, 59 will engage the cartridge 18 at 62, thereby to relieve the bearing means 46, 47 of forces incident to the expansion of the mandrel. The shaft 13 is moved axially to collapse the mandrel by a piston and cylinder unit 73 rocking a yoke 66 pivoted at 67 and carrying a block 65 engaging a flange 58 on the shaft 13. A stripper plate 79, actuated by two piston and cylinder units, is provided. In a modification, Fig. 3, ring springs 131 bear against a shoulder 133 of the shaft 113 and against a plug 134 threaded into the cartridge 114.
Patent GB-683588-A (GB)
Title: Improvements in or relating to collecting devices adapted to be used in conjunction with machines for lifting root or like crops
IPC: A01D19/10
Filed: 1951-02-19
Abstract: 683,588. Root-crop harvesters. JUNNILA, L. J. Feb. 19. 1951, No..3982/51. Class 6(iii) A riddle for cleaning and aligning the roots dug by a harvesting machine comprises a rotary sieve, of shallow frustoconical form, adapted to run on its rim 1 at one side of the har-. vester, and to be supported by an additional adjust a b 1 e wheel 11, the sieve being rotatable about an axle 10, which can be either horizontal or inclined, and being composed of radial spokes 3 carrying sets of resilient cantilevers 7 which overlap to form the riddle. The device is coupled to the harvester by a draught-bar 8 which is connected to the hub 5 of the riddle by links permitting the inclination of ,the riddle to be varied. The rods 7 vibrate as the riddle rotates.
Patent GB-744310-A (GB)
Title: Improvements in or relating to multi-ply shirt collars
IPC: A41B3/00
Filed: 1953-02-12
Abstract: 744,310. Collars for personal wear. O'KANE, R. J. Dec. 14, 1953 [Feb. 12, 1953], No. 4003/53. Class 141. In the manufacture of a collar from a onepiece facing 10, a one-piece interlining 11 and a two-piece backing 12, 13, the neck-band 12 is stitched at 15 to the facing and interlining except along the fold-line after it has been hemmed along its upper edge. The other backing-piece 13 is then similarly stitched at 16. The collar is then turned inside out and completed by stitching along the fold-line. Figs. 6 and 6a show the collar before the last operation.
Patent GB-1385677-A (GB)
Title: Hydrophilic polymers and contact lenses manufactured therefrom
IPC: C08F26/06
Filed: 1971-02-05
Abstract: 1385677 Hydrophilic polymers J T DE CARLE 4 Feb 1972 [5 Feb 1971] 4018/71 Heading C3P [Also in Division G2] Hydrophilic polymers capable of forming high water content hydrogels are obtained by copolymerization of a hydroxyalkyl acrylate or methacrylate with an N-vinyllactam in the presence of a minor proportion of a cross-linking monomer. The vinyl lactam may be N-vinyl pyrrolidone or N-vinyl imidazolidone and examples of suitable cross-linking monomers are diacrylates or dimethacrylates of glycols such as ethylene glycol, propylene glycol and polyethylene glycol, and allyl methacrylate and triallyl cyanurate. Minor amounts of other comonomers may optionally be copolymerized, e.g. acrylic or methacrylic acid, alkyl acrylates or methacrylates, and styrene. The polymers are useful for forming contact lenses and thus are preferably formed by bulk polymerization, e.g. in the presence of benzoyl peroxide, in a polyethylene tube, whereby lens blanks (discs) can be sliced from the rod of polymer obtained. The blanks are usually hardened by heating for a day at 75-100‹ C. to complete polymerization and/or cross-linking.
Patent GB-807798-A (GB)
Title: Electrostatic charging means and method
IPC: G03G15/02
Filed: 1956-02-09
Abstract: 807,798. Charging with static electricity. RADIO CORPORATION OF AMERICA. Feb. 9, 1956 [March 3, 1955], No. 4130/56. Class 35. An insulating sheet which may carry a photoconductive layer is given a uniform electrostatic charge by passing it between two corona electrodes 8, 10 to which high voltages of opposite polarity are applied, the sheet being guided so as to be spaced from both electrodes. As shown, the corona electrodes 8, 10 each comprise a series of fine wires 12, 16, respectively. They may be surrounded by shields 20 which are connected to earth.
Patent GB-686355-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L9/26
Filed: 1951-02-21
Abstract: 686,355. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 21, 1951 [March 2, 1950], No. 4227/51. Class 38 (iii) [Also in Group XXXV] Series commutator traction motors 31 are supplied from a transformer having low and high voltage taps 14, 15, an adjustable resistor 17 being included in the motor circuit. The resistor is adapted to be regulated by means of contacts 1-5 which are operated in sequence by cams driven by a pilot motor 21. A battery 23 supplies the armature of the pilot motor and its reversible field winding 22. The pilot motor is started by movement of a controller 24 which also closes a line contactor 36-37, the traction motors being initially energised from tap 14 through the whole of the resistor 17 and the camoperated contact 1. Contact 2 is then closed after which contact 1 opens, this sequence continuing until the traction motors are connected directly to the tap 14. The pilot motor then closes an interlock contact 29 to energise contactor coil 20, so reversing the pilot motor and closing contact 19. An additional cam-operated contact 30 maintains the energisation of the coil 20 through contact 20a so that the pilot motor continues to operate in the reverse direction. Upon energisation of the contactor coil 20 the traction motors are supplied through the whole of the resistor 17 from the tap 15. The cam-operated contacts are then closed in the reverse order until the traction motors reach the full voltage of the tap 15. The cam-shaft is returned to its initial position when the controller 24 is moved to the "off" position. A current limit relay 33 halts forward movement of the pilot motor when the traction motor armature current exceeds a given value.
Patent GB-746623-A (GB)
Title: Automatic steering control apparatus for self-propelled vehicles
IPC: B62D1/26
Filed: 1954-02-12
Abstract: 746,623. Automatic steering control systems. OVSHINSKY, S. R. Feb. 12, 1954, No. 4231/54. Class 38 (4). In a system for automatically controlling a tractor to travel back and forth across a field and advance in the direction of the length of the field, the tractor is started off across the field at one end and is maintained on a straight course by a contact-making gyroscope controlling a reversible electric motor operating the steering wheel. As the tractor moves, a wheel riding upon the surface of the field drives, as shown in Fig. 3, through a chain 23, shaft 29, electromagnetic clutch 31 and gearing 32, a drum 41 carrying conducting strips 54, 55 arranged so that the space between them has a shape corresponding to that of the field. A normally stationary contact 50, which is initially at the right-hand end of drum 41 makes contact with strip 55 when the tractor has crossed the field. This causes, through a system of relays, Fig. 8 (not shown), operation of the steering motor to a limiting position to turn the tractor to the right. A delayed relay maintains this condition for a period sufficient for the tractor to turn through 180 degrees. During this time drum 41 is declutched and a motor 69 is operated to move contact 50 by a screw 52 to a position corresponding to the new position of the tractor along the length of the field. When the delayed relay operates, the steering motor again comes under gyro control so that the tractor moves back in a straight line across the field, electromagnetic clutch 33 being engaged under these conditions to cause reverse operation of drum 41 through gearing 34. Engagement of strip 54 by contact 50 then causes a left turn of the tractor in a manner similar to that of the right turn. The field is thus repeatedly traversed until, when it has been completely covered and the last turn has been made, contact 50 has been moved to the left hand end of drum 41 causing operation of a switch 80 to stop the tractor. The tractor engine or a continuously operating motor may be arranged to control the steering instead of the reversible motor.
Patent GB-395438-A (GB)
Title: Improvements in cam operating mechanism for electric switches with key or spring contacts
IPC: H01H19/62
Filed: 1932-02-12
Abstract: 395,438. Actuation of switches. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Feb. 12, 1932, No. 4247. Convention date, Feb. 17, 1931. [Class 38 (v).] A number of groups of circuits are selectively controlled by switches actuated individually by cams 8, 9 on a shaft 4 carrying a crown wheel 5 connected by a pinion 6 to a shaft 7 driven by an electric motor which is energized when desired through the medium of a time switch. Each switch comprises a spring 10, Fig. 2 fixed to the base by a terminal 11 and carrying at its free end a contact 12 which co-acts with a fixed contact 13. The spring 10 is reinforced by one limb of an angle-piece 14 having a roller 15 which is engaged by a cam 8 or 9 to make and break the circuit. The cams 8, 9 are so formed and placed on the shaft relatively to each other, that the desired switching combinations are effected when the shaft 4 is rotated. The six switches shown in Fig. 1 are for two groups of circuits in a threephase system. In a modification the gearing is readily detachable to vary the velocity ratio by changing the crown wheel 5.
Patent GB-797741-A (GB)
Title: Improvements in or relating to armouring clamps for wire armoured electric cable joints
Inventor: PANES LESLIE ROY
IPC: H02G15/013
Filed: 1956-02-10
Abstract: 797,741. Mechanical couplings for cable armouring. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 11, 1957 [Feb. 10, 1956], No. 4315/56. Class 38 (1). A clamp for cable armouring 3 comprises inner and outer clamping cones 17, 18 respectively and a nut formed in two concentric parts 19, 20, the inner part 19 screwing into the outer part 20 which in turn screws into the outer cone 18, the thread on part 19 having a root diameter only slightly greater than the maximum external diameter of the inner cone and the outer part 20 having a minimum internal diameter only slightly greater than said external diameter, so that part 20 may be slid over the inner cone 17. A metal sleeve 23 serves to maintain the formation of the armouring wires. The clamp is applied at a cable joint, the conductor joint (not shown) being enclosed in a metal tube 6 sealed to cable sheath 5 by sleeve 7, container 8, ring nuts 9, 10, 11 and a sealing ring 12 compressed by a sleeve 13. The container 8 is filled with metal forming a cast plumb 16.
Patent GB-1107740-A (GB)
Title: Cyclic ketals which exhibit estrogenic activity
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107740/C2/1> wherein A is -CH2-CH2- or -CH=CH-, B is an ethylene, 1,2-propylene or trimethylene radical, and R is H, alkyl, aryl, bromoaryl, carboxylic acyl or aralkyl, the R groups being the same or different, may be prepared from the compound <FORM:1107740/C2/2> by reaction with the appropriate glycol, in the presence of p-toluenesulphonic acid, with preceding optional steps of hydrogenating the olefinic bond and/or etherifying or acylating the OH groups.  Therapeutic compositions having estrogenic and growth-promoting activity, comprise a compound of the first formula given above, together with a suitable diluent, and may take the form of animal feeds or an injection suspension in, e.g., peanut oil.  Reference has been directed by the Comptroller to Specification 951,349.