baber/WOPTO huggingface dataset:
Patent GB-1109072-A (GB)
Title: Method of and apparatus for making sealed switches
IPC: H01H11/00
Filed: 1966-01-26
Abstract: In a machine for making sealed switches having magnetic contact units, consisting of a set of assembling heads movable relative to a supporting base carrying feeding stations for feeding magnetic contacts and glass tubes to chuck assemblies on each head, the glass tube <PICT:1109072/C1/1> chuck assembly includes a pair of spaced heating elements, each having an opening through which the glass tube is dropped, a stop being provided below the lower heating element to stop the tube in a desired position relatively to the heating elements and including a nozzle for supplying gas to the interior of the tube. The machine has also means for feeding first and second contacts into the ends of the tube and for deflecting the first contact to one side so as not to impede the entry of the second.  The tubes are fed from a magazine into a feeding slot in end to end relation.  At the lower end, the slot is vertical and has an enlarged part at the rear accommodating a rocking lever 90 carrying at the top end a plunger 104 and an armature 112 connected by a spring 114 and at the lower end a tang 100.  The lever is biased by a spring 98 into the position in which the plunger 104 engages a tube 48, the tang being in this position retracted to release the lowermost tube 48.  A normally energized solenoid 116 attracts the armature 112, the plunger 104 being then retracted and the tang 100 advanced to prevent the escape of a tube. When the tube receiving chuck moves into position, the solenoid is de-energized and the spring momentarily withdraws the tang releasing the lowest tube while the plunger engages the next tube.  The ends of the tube in the chuck are encircled by upper and lower heating elements 174, 176 and a gas supplying nozzle 198 is located below the lower element as described in Specification 1,080,235.  Each contact consists of a cylindrical part with flattened ends, and is delivered by way of a slot so designed that it is vertical and correctly orientated, to a position in which it is picked up by a moving chuck.  The upper contact chuck and the chuck for the glass tube begin to move downwards towards the lower contact chuck so that first the lower contact is positioned in the tube and then the upper contact is moved into place, a resilient finger moving the lower contact to one side during inserting of the upper contact. During this movement, the ends of the tube are moved into C-shaped parts of a pair of heating elements, e.g. of platinum-rhodium ribbon heated by electric current.  Gas is finally passed into the tube and the ends sealed.
Patent GB-1268475-A (GB)
Title: Improvements in or relating to screwpumps
Inventor: CLOUGH GEORGE FRANCIS GILBERT
IPC: F04D3/02
Filed: 1970-01-24
Abstract: 1,268,475. Archimedean screw pumps. SIMON-HARTLEY Ltd. Jan. 11, 1971 [Jan.24, 1970], No.3526/70. Heading F1C. An Archimedean screw pump is provided with at least one bearing comprising a ring 13 secured around the screw and anchored to the periphery of the screw blade or blades 11 and supported by bearing pads 15 set in the inclined trough 12 in which the pump operates. At least two angularly spaced bearing pads 15 are provided for each ring 13, each bearing pad being mounted in a box 16 set into the screeding comprising the inner surface of the trough 12. Preferably the bearing pads are spring-urged upwardly. Short auxiliary blades 14 are provided between the blades 11 to assist in supporting the ring 13. The bearing pads may be replaced by rollers.
Patent GB-196248-A (GB)
Title: Improvements in or relating to ribbon spools for typewriting machines
IPC: B41J33/00
Filed: 1923-02-06
Abstract: 196,248. Smith & Bros. Typewriter Co., L. C., (Assignees of Gabrielson, C.). April 14, 1922, [Convention date]. Ink-ribbon mechanism.-A ribbon-spool comprises top and bottom flanges joined by a core, the bottom flange having cams co-operating with means for preventing the feed-reversing devices from forming an obstruction when the spool is being mounted on a typewriter. The spool comprises top and bottom flanges 24, 30 connected by a core 27 formed from a blank having lugs 28, 29, which engage apertures in the flanges and are headed or welded. For holding together the ends of the core, abutting lugs formed at the top and bottom corners of the blank engage common apertures in the top and bottom flanges. The top flange is dished and the bottom flange is formed with depressions 32 having cam surfaces 33 co-operating with the devices described below. The core is formed with a ribbon-attaching prong 63. The top flange is secured to a sleeve 25 fitting on a shaft 14 and formed with notches engaging lugs 19 formed on a collar 18 on the shaft. The spool is retained by means of a thumb-screw 21. The spool is associated with a known feed-reversing device comprising a spring- urged feeler 39, pivoted on a bracket 35 and having lugs 41, 43. When the ribbon has been unwound, the lug 41 projects through a slot 31 in the core, and the lug 43 engages a gear 16 on a constantly-rotating shaft 17, which thereupon rises to bring the gear into engagement with a gear 15 on the shaft 14. There is now provided a spring-urged lever 50, adapted to move the feeler inwards when the full spool is removed, the lever being normally restrained by the engagement of a finger 55 thereon with the core 27. When the fresh spool is mounted on the shaft 14, the bottom flange rests on the finger 55, and on turning the spool one of the cam surfaces 33 engages the finger and rocks the lever 50, thereby permitting the feeler to return to the normal position. When the end of the cam surface reaches the finger, the finger enters the core, and the spool drops to permit engagement of the sleeve 25 with the lugs 19.
Patent GB-739629-A (GB)
Title: Improved stapling machine
IPC: B27F7/34
Filed: 1954-02-08
Abstract: 739,629. Stapling. SENCO PRODUCTS, Inc. Feb. 8, 1954 [March 30, 1953], No. 3664/54. Class 89 (3). In a pneumatically operated hand stapler, pistons 66, 31 are provided to move an anvil 82 up to a nose 26 from which a staple is to be ejected by a driver 37, and to operate the driver respectively. The driver is provided with a head 36 which engages loosely in a recess 35 in the piston 31 'under the action of a spring 39. Downward movement of the piston 31 is resisted by the spring 39 and air resistance controlled by an escape passage 34 and is limited by a resilient stop 32. The anvil 82 is pivoted at 85 on a magazine 25 and is provided with a forked upper arm 83 which is coupled by a wire bail 74, 78 with a rod connected to or loosely associated with the piston 66. Upward movement of the piston 66 against a spring 71 is limited by a resilient stop 70. The handle 21 is provided with inlet and outlet air passages 24, 48 and with a spring pressed valve 44, 45 operated by a pivoted lever 53. When the core is to be used as a tacker, the anvil is detached and the piston 66 and its housing 64 are replaced by a screwed cap.
Patent GB-137152-A (GB)
Title: Improvements in fasteners for purses, cases, boxes and the like
IPC: E05B65/52
Filed: 1919-02-15
Abstract: 137,152. Clifford, A. Feb. 15, 1919. Stud-and-slot fastenings.-In a fastening for purses &c. of the type in which a notched stud on the flap enters an aperture in a casing on the purse and is engaged by a sliding catch, the catch c is housed within a recessed part b<2> of the back-plate b and is provided with bent-up edges c<2>, which space it from the back-plate and keep it in position. The catch is actuated by a flat spring f, one end of which is engaged with a stuck-up portion c' of the catch, the other end bearing against the casing. In the modified form shown in Fig. 6, a double-coil flat spring f is employed, the crosspiece f<1> bearing against the bent-up edges c<2> of the catch, and the coils being outside the catch housing and held by the ends f<2> engaging slots in the back-plate.
Patent GB-808289-A (GB)
Title: An improved rubber composition
IPC: C08L19/00
Filed: 1956-02-07
Abstract: A composition for use in the manufacture of a chafer element for protecting the head of a pneumatic tyre (see Group XXXIV) comprises vulcanized discrete particles of a polymeric material of substantially prismatic shape embedded in a matrix of unvulcanized polymeric material.  The discrete particles are preferably cubical and of vulcanized natural rubber, and the unvulcanized polymeric material may be natural rubber, butadiene-styrene or butadiene-acrylonitrile copolymer, or a polymer of chlorobutadiene. In an example, the composition comprises 100 parts by weight of unvulcanized natural rubber, 300 parts of vulcanized particles of natural rubber, and 50 or 100 parts of carbon black, and vulcanizing and other ingredients.
Patent GB-857507-A (GB)
Title: Improvements in or relating to polymer blends and the production of shaped structures from them
IPC: C08L23/02
Filed: 1959-02-03
Abstract: Homogenous compatible polymer blends comprise two or more saturated organic thermoplastic polymers, at least one of which belongs to Group A polymers with a plurality of side groups of formula-COOR, -OM, -O.CO.R, or SO2X where R is a substituted or unsubstituted alkyl, aryl or aralkyl group and X is an halogen atom attached to carbon atoms along the chain separated by at least one carbon atom, and group B polymers of mono- or di-olefines or natural rubber, and containing 5 to 75% (based on the polymer) of finely divided siliceous material with greatest dimension 0,001 to 0,01 microns, a specific surface area of at least 100 sq. m./gram and with a surface layer of hydroxy groups. Group A polymers include (1) polyalkyl acrylates; copolymers or terpolymers of alkyl acrylates with copolymerizable monomers such as vinyl acetate, acrylonitrile, dimethyl maleate, methyl or octyldecyl methacrylate, vinylchloride, vinylidene chloride; and glycol acrylates such as methoxy or butoxy ethyl acrylates with copolymerizable monomers, and (ii) modified saturated hydrocarbons such as chlorosulphonated polyethylene, and copolymers such as ethylene/vinyl acetate or vinyl salicylate, isobutylene, and tetrafluoroethylene or chlorotrifluoroethylene with vinyl acetate and polyvinyl formal or butyral.  Group B polymers include polyethylene, polypropylene, polyisobutylene, butene-1, pentene-1, polybutadiene, and their copolymers and natural rubber. The blends may be prepared by intimately admixing the components e.g. on a rubber mill, at an elevated temperature at least equal to the softening point of the highest melting polymer, in a ratio of A to B of from 20 to 1 to 1 to 100.  The blends may be used with agents such as benzoyl peroxide, t-butyl perbenzoate, toluene diisocyanate, triethylene tetramine, and zinc oxide or by ionizing radiation. Examples describe the preparation of blends of ethylene-vinyl acetate copolymer with polyisobutylene or polyehtylene; n-butyl acrylate or polyethyl acrylate and polyethylene; ethylacrylate-acrylonitrile copolymer with polyethylene; polypropylene and polymethyl acrylate; and polymethyl acrylate and natural rubber, with hydrated particulate silica.  Transparent films may be prepared from the blends, or in an example the blend of polymethyl acrylate and natural rubber may be milled at 100 DEG C. with butylated hydroxytoluene, tetraethyl thiuram sulphide, zinc oxide and sulphur to form a film of improved tensile strength.  Formed structures may be fabricated, such as fabric replacements, floor tiles, shoe sole and heels, and luminescent pigments may be incorporated in the films. Specifications 834,942 and 835,074 are referred to.
Patent GB-249640-A (GB)
Title: Improvements in automatic telephone switching apparatus
IPC: H01H63/24
Filed: 1925-02-11
Abstract: 249,640. Standard Telephones &. Cables, Ltd., (formerly Western Electric Co., Ltd.), (Deakin, G., and Schreiber, L. J. J.). Feb. 11, 1925. Automatic exchange systems and selectors. - In a power-driven selector, the centring of the moving parts such as the brushes and trip-spindle and also the generation of reverting-impulses is controlled by a moving commutator which cooperates with fixed brushes. The commutator comprises an insulating drum or segment 25, Fig. 3, fixed to the moving shaft, the drum carrying a shaped conducting strip 20 which may be inset so that the insulation and conducting strips form a level surface or may stand above the level of the insulation. The fixed brushes 21 - - 23 are adjustable with respect to the commutator and to one another. Fig. 1 shows circuit arrangaments for a selector of the brush-choosing type. When contacts 14, 15, 18 close, relay 13 energizes over the loop and completes a circuit for the trip-spindle magnet 4. At each engagement between brush 10 and a conducting segment on the upper edge of commutator 9, relay 1 is shortcircuited and the register-controller operates in the usual manner and opens eventually the fundamental circuit at contact 2. When brush 10 next engages an insulating segment, relay 13 de-energizes but magnet 4 remains energized over brush 12 and the lower edge of the commutator until the brushes are correctly centred. The control of the brush-driving magnet 3 takes place in a similar manner. In the Provisional Specification, Specification 201,256 is referred to.
Patent GB-1126143-A (GB)
Title: Refrigerators
IPC: F25D17/06
Filed: 1967-01-26
Abstract: 1,126,143. Refrigerators. GENERAL MOTORS CORP. 26 Jan., 1967 [14 Feb., 1966], No. 3885/67. Heading F4H. A refrigerator comprises a horizontal partition, a duct 44, an evaporator 38 in the duct, a drain pan 32 beneath the evaporator and spaced from the bottom wall of the duct to provide an air passage 46 and a fan 54 which draws air rearwardly over the evaporator, a portion of the air discharged by the fan being admitted via an aperture 50 to passage 46 to flow forwardly therethrough. It is stated that the latter flow of air prevents moisture from penetrating the insulation 48 of the duct.
Patent GB-807312-A (GB)
Title: Improvements in and relating to penstocks and the like
Inventor: ROWLEY ROBERT
IPC: E02B7/26
Filed: 1956-02-08
Abstract: 807,312. Sluice gates. HARTLEYS (STOKE-ON-TRENT) Ltd. Feb. 7, 1957 [Feb. 8, 1956], No. 3890/56. Class 68(2) [Also in Group XXIX] A sluice gate or similar valve, having a nut 20 mounted on a rotary screwthreaded operating spindle 18 so that the nut moves axially when the lifting mechanism is actuated, e.g. by an electrically driven capstan 15, to rotate the spindle, is characterized by a pair of levers 21,, that are pivotally attached to the nut 20 and fulcrums 23, mounted on the top of the door 12, and which extend outwards so that in the closed position of the valve their free ends bear on the gate frame. When the lifting mechanism is actuated the nut moves axially, and the mechanical advantage of the levers eases the door from its closed position, after which the nut acting via the levers and their pivots lifts the door directly. In a modification, the nut 20 may be replaced by a collar rigidly attached to a non-rotary threaded spindle which passes through a rotary nut associated with the actuating mechanism.
Patent GB-265993-A (GB)
Title: A process for making a highly active alkaline coke
IPC: C01B31/12
Filed: 1927-02-11
Abstract: 265,993. Naamlooze Vennootschap Nederlandsche Mijnbouw en Handel Maatschappij. Feb. 12, 1926, [Convention date]. Materials and compositions for making gas. coke, and other products.-A coked mass suitable for the production of cyanides from free nitrogen, is formed by heating a mixture of an alkali metal or barium hydroxide or carbonate with carbonaceous materials and with or without catalysts such as salts of iron or nickel, in thin layers while avoiding crushing. Suitable carbonaceous materials are hard coal, brown coal, peat, bitumen, wood, reeds, straw or husks, together with binding materials such as asphalt or petroleum distillation residues. The coking is carried out on internally heated rotary drums a provided with ribs k forming pockets in which the material is coked and from which it is discharged on to a travelling band h arranged so as to prevent the grains being crushed by falling. An acid-free tar is obtained during the heating. The Specification as open to inspection under Sect. 91 (3) (a) states that any alkali or alkaline earth salt may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-1091183-A (GB)
Title: A digital signal producer
IPC: H03M1/00
Filed: 1965-01-29
Abstract: 1,091,183. Electric selective signalling. LICENTIA PATENT - VERWALTUNGSG.m.b.H. Jan. 29, 1965 [Jan. 29, 1964], No. 4014/65. Heading G4H. A plurality of coded discs with tracks corresponding to a binary-coded decimal scale each has an additional coded check track. In all but the first denomination the check track comprises a parity bit. In order that the resolution of the check track in the first denomination is greater than the smallest bit a modified check parity track is arranged in which if the smallest bit is a 0 an odd parity bit is produced and in all other places the check digit of the adjacent smaller digit is produced and the result inverted by a logic circuit. This result corresponds to the combination of two check codes in which the second, in which an odd parity bit is produced when the smallest bit is a 1 and in all other places the check digit of the adjacent higher digit is produced, is the inverse of the first check code. The first two discs are mounted on a common shaft and the latter discs are connected thereto by 10 : 1 gearings. The discs are scanned by lead-lag scanners in V-formation except in the highest position of each disc and the change-over of scanners is determined by the previous track or in the case of the finest track of all but the first disc is determined at the change-over of the previous decimal value 5 or 3 as in Specification 1,022,891. The discs may be scanned photoelectrically or inductively.
Patent GB-513393-A (GB)
Title: Improvements in work guides for bar-stock in automatic lathes
IPC: B23B13/12
Filed: 1939-02-07
Abstract: 513,393. Steady rests. PITTLER WERKZEUGMASCHINENFABRIK AKT.-GES. Feb. 7, 1939, No. 4052. Convention date, March 8, 1938. [Class 83 (iii)] A work steady for bar stock in automatic lathes, arranged between the cutting tools S and the driving spindle 13 comprises a freely rotatable housing sleeve 3 with a female conical portion 6 engaging a male conical portion on a work engaging clamping sleeve 2, spring-urged into engagement with the female portion in such manner that the clamping sleeve is slidable within the housing sleeve in the direction of feed against the action of the spring. The male conical portion is provided with a screwed adjusting collar 4 at its end between which and a shoulder on the female conical part 6, a spiral spring 5 is arranged. The latter part 6 is carried in roller bearings 9 in a housing 11 attached to the front of the machine. When the driving spindle 13 is withdrawn at the end of an operation, prior to feeding a new length of stock, the guide portions grip the stock and prevent its backward movement.
Patent GB-676254-A (GB)
Title: Means for adjusting the inclination of vehicle or other seat back rests
IPC: B60N2/23
Filed: 1950-02-20
Abstract: 676,254. Seat adjustments. WILMOT-BREEDEN, Ltd., and BURGESS, W. H. Feb. 14, 1951. [Feb. 20, 1950] No. 4208/50. Class 52 (ii). [Also in Group XXV] The inclination of the pivoted back rest on a vehicle or other seat is adjusted by means of a telescopic stay which comprises a hydraulic cylinder a and a plunger e adapted at their opposite ends for pivotal attachment to the seat frame and back rest. The plunger, which is hollow, passes through glands g, h and has a piston f. A. spring h enclosed in a telescopic sheath m, is adapted to withdraw the plunger from the cylinder. A valve q can be unseated by means of a pivoted handle t and a rod s to place the opposite sides of the piston into communication with each other through passages o and p. A spring r, which urges the valve on to its seat, is adapted to allow the latter to lift slightly under the influence of spring k, so that the back rest will regain its upright position when the seat is vacated, a stop x abutting the gland d to limit the outward movement of the plunger. A slidable plug v, loaded by a spring w, defines a liquid chamber u of variable capacity within the plunger.
Patent GB-811330-A (GB)
Title: Improvements in or relating to apparatus for use in playing chess
IPC: A63F3/02
Filed: 1956-02-10
Abstract: 811,330. Board games. CROPPER, N. May 7, 1957 [Feb. 10, 1956], No. 4295/56. Class 132(2) The base 21 of a lidded box is formed of magnetic material and marked as a chess-board and each chessman 11 has a magnet in its base. According to the Provisional Specification, both the base and the men may have magnets or each square may have a magnet and the men, magnetic material.
Patent GB-554278-A (GB)
Title: Improvements in or relating to the jointing of tubes to headers or the like
IPC: F22B37/22
Filed: 1942-04-01
Abstract: 554,278. Jointing tubes to headers; inserting and extracting cotters. SUPERHEATER CO., Ltd., and ROBINSON, E. A. April 1, 1942, No. 4336. [Class 99 (i)] [Also in Group XXIII] In a joint in which a clamping member or dog 5 bears through rings 6 against the shouldered ends 7 of one or more tubes seated in a header wall 2, a slightly tapered cotter 12 is wedged between the dog and an abutment surface of a stud 9 secured in the header wall. The upper surface 13 of a slot in the stud has an inclination complementary to the taper of the cotter and is radiused as shown. The cotter may bear on a washer 14 having a spherical seat engaging a conical or spherical seat 15 in the dog. Alternatively the cotter may engage registering slots in the stud and dog. For inserting or extracting a cotter a tool comprises a bar 19, Fig. 3 having a hole 20 for engaging the stud 9 and a lug 18 in which works a screw 17 carrying a swivellingly mounted pressure block 21 adapted to engage either end of the cotter 12. For use where access can be had on one side only an extracting tool has a wide slot 25, Fig. 5 to take over the stud 9, the small end of the cotter 12 engaging a slot 27 in a lug 24. The screw 17 works in the bar 19 and projecting into the slot carries the pressure block 21 which is shaped to fit against the stud. Specifications 338,462, [Class 99 (i)], 411,633, and 436,299 are referred to.
Patent GB-1091205-A (GB)
Title: Improvements in reinforced concrete floors
Inventor: ROBINSON HARRY
IPC: E04B9/18
Filed: 1964-02-01
Abstract: 1,091,205. Reinforcing rod spacer and suspended ceiling hanger support. NEOLITH Ltd. Feb. 1, 1965 [Feb. 1, 1964], No. 4385/64. Heading E1W. A reinforcing rod spacer comprises a slotted upper portion 10 adapted to receive a reinforcing rod 17, and a lower foot portion 11 which may be bent down after the poured concrete has set and which is formed to provide attachment means for a suspended ceiling hanger. In one modification the foot 11 is fixed to shuttering by a nail 16, and adherence to the concrete is prevented by a felt pad 15. In another modification. Fig. 4 (not shown) the device has a neck portion adapted to be received between the flanges of hollow wood-wool cement formers.
Patent GB-753860-A (GB)
Title: An improved butterfly valve
IPC: F16K1/226
Filed: 1954-02-16
Abstract: 753,860. Valves. SWAIN, F. E., and WISE-. MAN & SONS, Ltd., D. F. Dec. 17, 1954 [Feb. 16, 1954], No. 4463/54. Class 135. A butterfly valve closure member comprises a parallel-faced, spherically-edged disc 5 rotatably mounted on a shaft 6. The disc co-operates with a seat ring 10 the resilience of which permits the disc to pass through the ring in its opening and closing movements. The ring 10 is formed with a bevel 11 and held with radial clearance in an annular recess 9 by a screwthreaded sleeve 12 which permits radial movement whilst preventing axial movement. In a modification, the seat ring may be composed of two rings having mis-aligned splits. Bevels formed on the rings are arranged so that the smaller internal diameters of the rings are adjacent each other.