baber/WOPTO huggingface dataset:
Patent GB-1336669-A (GB)
Title: Plastic pirn sleeves and their manufacture
IPC: B29C69/02
Filed: 1971-05-04
Abstract: 1336669 Plastics tubes DU PONT OF CANADA Ltd 4 May 1971 [4 May 1970] 12952/71 Heading F2P [Also in Divisions B8 and B5] A plastic pirn sleeve Fig. 1 comprises a tube with longitudinal rows of substantially circumferential grooves alternating with longitudinal blank areas; the grooves having a profile that is chordal, lunate or lenticular with a maximum depth peak-to-valley of 0À002 to 0À010 inch and tapering at either end to be flush with the blank areas; there being between 30 and 70 grooves per inch and the longitudinal rows being between 1/32 and ¢ inch wide. The longitudinal rows may extend axially or helically with or without interruptions along the tube and the grooves may diverge from being truly circumferential by as much as 10 degrees. The material of the sleeve may be, e.g. polyethylene, polypropylene, pvc or its copolymers, cellulosics such as cellulose acetate butyrate, or an ABS resin. Apparatus for producing the sleeve may comprise a mandrel 10 which supports a thermoplastic tube 11 and passes within a frame 12 carrying grooved wheels 15 mounted in brackets 17 and kept pressed against the tube 11 by springs 19. The die wheels 15 may be heated. Alternatively the grooves may be impressed into the tube by flat dies instead of the die wheels, and these may either be patterned metal belts or reciprocating engraved bars. Other possible apparatus is stated to be either a heated wire grid or helical threaded rollers or cutters.
Patent GB-437124-A (GB)
Title: Improvements in and relating to self-locking spring catches
IPC: F16B5/10
Filed: 1934-04-30
Abstract: 437,124. Fastenings. LEPERE, E. M. G., 174E, Avenue Victor-Hugo, Paris. April 30, 1934, No. 13014. [Class 44] A stud and eyelet fastening comprises a spring 14 the ends of which engage the stud and are separated to release the latter by a rotatable cam. The cam is in the form of two opposite segments 17 of a cylinder, the ends 18 of which are bent over to retain the cam in the casing. The fingerpiece 15 is arranged to lie either parallel to the spring arms or at right angles thereto. In a modification a fingerpiece is provided on the other side. In a further variation two catches are mounted on the same stud, one of which is operated by a handle and the other by a key.
Patent GB-1420174-A (GB)
Title: Method of regulating the proportions of gas outputs
IPC: G05D11/035
Filed: 1973-03-19
Abstract: 1420174 Fluid-pressure servomotor systems SOC DES ACIERS FINS DE L'EST 19 March 1973 [29 March 1972] 13060/73 Heading G3P A regulator R controlled by a ratio operator OR to maintain an air-flow 1 at a desired ratio to a gas flow 2 operates servomotor 5, 6 for control valves 3, 4 so that an increase in the regulator output through one range, say 200 to 800 millibars, opens one valve while an increase through a further range, say 850 to 1400 millibars, closes the other valve. The system may be used to control a gas furnace for heat-treatment and includes flowmeters 7, 8 connected to a recorder 9 and to the regulator R and operator OR. A selector MAG permits the servomotors to be placed under direct control. Electromagnetically actuated valves a...e and a'...e' provide selective control of separate zones in the furnace.
Patent GB-1349043-A (GB)
Title: Process for the preparation of 6-demethyl-6-deoxy-6-methylene  tetracyclines
IPC: C07C233/00
Filed: 1972-03-21
Abstract: 1349043 Electrochemical preparation of 6- demethyl - 6 - deoxy - 6 - methylene - tetracyclines PLIVA PHARMACEUTICAL & CHEMICAL WORKS 21 March 1972 [5 April 1971] 13136/72 Heading C2A [Also in Division C7] A process for the preparation of a 6-demethyl- 6 - deoxy - 6 - methylene tetracycline of the general Formula 1 wherein R is a hydrogen or a chlorine atom and R 1  is a hydrogen atom or a hydroxy group, comprising the steps of (a) electrochemically dehalogenating a 6-demethyl-6-deoxy-6-methylene - 11a - halo - tetracycline of the general Formula II wherein R and R 1  are as defined above and X is a halogen atom, the electrochemical process being carried out at room temperature in an electrolytic cell without a diaphragm in an acid or neutral electrolyte containing an organic solvent using either a metal or a graphite cathode and either a platinum or a graphite anode, and (b) recovering the product from the electrolysis solution. Suitable organic solvents include alcohols such as methanol. Suitable metal cathodes are mercury, lead or copper. The electrolysis may be carried out at a controlled potential of- 0-2 to - 0À8 V with respect to the standard calomel electrode, the potential depending on the cathode used. The electrolysis may be carried out at a constant current density corresponding to the initial potential of the cathode. The 6-demethyl-6-deoxy-6-methylene- 11a-halo-tetracycline used in step (a) may be the reaction mixture resulting from the dehydration of the corresponding 11a-halo-hemiketal using an inorganic acid and the recovery step (b) may be carried out by diluting the electrolysed solution with an organic solvent, followed by neutralizing the excess of the inorganic acid, evaporating the solvent and finally, by crystallization and nitration.
Patent GB-688673-A (GB)
Title: Improvements in and relating to bottle and the like cleansing machines
IPC: B08B9/20
Filed: 1951-06-04
Abstract: 688,673. Bottle washing machines. SEITZWERKE GES. June 4, 1951 [June 5, 1950], No. 13156/51. Class 138 (i). [Also in Group XXX] In a bottle and the like cleansing machine having baskets for carrying bottles 17 through the machine and closing levers 13 normally resiliently held across an open side of each basket, the closing levers of the basket 12<SP>2</SP> occupying a loading position and of the basket 12<SP>1</SP> occupying an unloading position, in the machine, are simultaneously moved aside by a single means to open the baskets and facilitate loading and unloading operations respectively, the said means being constituted by a setting-up lever 14 capable of oscillation about a pivot 14', which lever during oscillation sets up bottles discharged from the basket 12<SP>1</SP> on to a conveyer 22 for carrying them away, and which lever has two pressure cams 16, 15 arranged to act one on each of the closing levers in the loading and unloading positions. The baskets closing levers 13 are urged to basket closing positions by springs (not shown) and baskets are brought to the unloading and loading positions by means of a rotary guide wheel 11. When the lever 14 is swung to the position shown in full lines, under the impulse of a cam (not shown) the bottles 17 in the basket 12', which has been opened, slide down a guide chute 18 on the lever 14 on to a receiving ledge 19. At the same time fresh bottles are loaded into the opened basket 12<SP>2</SP> from a ledge 20 by means of a push rod 21. When the lever 14 is swung upwardly to the position shown in dotted lines the baskets 12', 12<SP>2</SP> are again closed and the bottles on the ledge 19 are set-up on to the conveyer 22. The cam 15 is pivotally mounted on the lever 14 and controlled by a spring 23. If the closing lever 13 of the basket 12' cannot be opened due to a broken bottle, the cam 15 passes over that lever and the machine is brought to rest when that loaded basket reaches the loading position, by means not shown. The cam 16 may also be resiliently mounted on the lever 14.
Patent GB-943877-A (GB)
Title: Improvements relating to methods of growing crystals
Inventor: FOCHS PETER DEREK
IPC: C30B23/02
Filed: 1961-04-12
Abstract: 943,877. Crystallizing. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 9, 1962 [April 12, 1961], No. 13173/61. Heading BIG. A charge of suitable material 8 is vaporized and diffuses, assisted by the gas flow from source 4, to the cooled end 5. The fibre supported on cradle 7 is positioned, preferably when stable conditions exist in the tube, so that crystals grow on the fibre. The fibre may be initially located in the heated part of the tube to prevent premature crystallization.
Patent GB-509949-A (GB)
Title: Improvements in or relating to boat davits
IPC: B63B23/04
Filed: 1938-05-03
Abstract: 509,949. Davits. MOE, S. May 3, 1938, No. 13191. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 4, 1938.] [Class 115] The luffing davit 1. is moved by a connecting rod 3, the inner end of which is attached to the crank-pin 5. This pin rests on the side plate of the davit mounting 8 in the outboard position so that the actuating gear is relieved of its load. In the inboard position the stop 12 on the rod 3 rests on the top of the frame 8.
Patent GB-822349-A (GB)
Title: Improvements relating to load carrying assemblies for tractors
Inventor: SEARLES JOHN STANLEY
IPC: B62D49/02
Filed: 1956-04-30
Abstract: 822,349. Tractor load handling attachments. HART AGRICULTURAL ENGINEERING CO. Ltd. April 12, 1957 [April 30, 1956], No. 13213/56. Class 78 (3). A transport box 19 is pivoted at 28 to the lower lift links 13 of a tractor and is provided with a pair of horizontally spaced hook members 29 which co-operate with pins 35 mounted on a Y-shaped arm 33 pivoted to the tractor casing at 16. Arm 33 is provided with a handle 36 by means of which pins 35 are released from hooks 31 to allow the box to tip. Further hooks 30 are provided to permit the box to be latched in its tipped position.
Patent GB-1035126-A (GB)
Title: Pressure type percolator for coffee
IPC: A47J31/30
Filed: 1964-03-31
Abstract: 1,035,126. Coffee percolators. U.  BALDISLI. March 31, 1964 [Aug. 3, 1963], No. 13223/64. Heading A4D. Coffee is formed by heating water in a reservoir 2 so that when the water boils it is forced by the steam pressure up through a tube 9 into a cooler upper chamber and discharged below the boiling point on to a filter 11 containing the coffee grounds. The infusion percolates through the holes of the filter 11 into a hollow space 10 of a cylindrical body 8 and is delivered through a tube 14 directly into a receptacle. Vent holes 20 are provided in the body 8 to prevent any build-up of pressure in the space 10 due to steam mixing with the water and passing up the tube 9. To prevent any excess steam pressure building up in the reservoir 2 an outlet orifice 16 with a whistle aperture 17 is provided. Cessation of this whistle will indicate the end of the operation. The body 8 and a cap 18 may be formed of a transparent synthetic plastics material e.g. Macrilon.
Patent GB-784210-A (GB)
Title: Pipe coupling device
Inventor: MAHOFF GEORGE ALEXANDER
IPC: F16L23/10
Filed: 1956-04-30
Abstract: 784,210. Band clips. AEROQUIP CORPORATION. April 30, 1956. No. 13258/56. Class 44 [Also in Group XXVIII] The adjoining ends of pipes 11 provided with annular beads are coupled by a segmented channel-shaped member 10 contracted around the pipes by a stainless steel band 15 one end 17 of which carries a fitting 18 through which passes the end 22 of a T-shaped bolt, the cross-piece of which engages in the notched end 21 of a U-shaped member 20 pivotally attached to the other end of the band which is tightened by screwing up a nut 23 on the bolt 22. The segments of member 10 may be spot-welded to the band 15 and their ends may overlap.
Patent GB-132587-A (GB)
IPC: B27D1/08
Abstract: 132,587. Hayes, J. R. S., and Dunwell, W. Sept. 5, 1918. Cramps and clamps. - In the manufacture of laminated wood, celluloid, &c. aerial propellers and other articles, the laminµ and the adhesive applied to their surfaces are positively heated by controlled means and the laminµ are clamped together by adjustable pressure while the adhesive is setting. Fig. 1 shows a side elevation partly in section, and Fig. 2 an end elevation of the apparatus for a two-bladed aerial propeller. Each lamina is heated on the hot plate b while the adhesive is applied to its upper surface. After two layers j have been treated in this way, they are threaded over the central bolt f and rest on the heated bed plate d and are subjected to pressure at the centre and elsewhere. Further layers are superposed in succession and treated in the same manner. When the necessary depth is obtained, the heat is cut off and the clamped laminµ allowed to cool in the machine. The central pressure is controlled by the wheel t, nut i, sleeve g, and bolt f, while the pressure at any other point is obtained by spring bolts l, nuts p, wheels t, bridge r, and foot s. To the bridge r is secured a rope, chain, &c. x passed round a pulley w and through a locking device which comprises a sliding carriage y fitted with an automatic grip z. A number of pulleys w are arranged on the lower of the rods u one for each of the described clamps. In a modification, a slotted top bar is substituted for the rods u and is fitted with screw-operated clamps, or this top bar may be fitted with a number of fixed or movable cylinders having plungers operated by fluid pressure. If desired, a perforated metal plate may be placed, when hot, over each lamina as they superpose in the machine. This assists uniform heating, and allows any vapour to escape.
Patent GB-132700-A (GB)
IPC: H01R4/36
Abstract: 132,700. Moss, H. Jan. 9, 1919. Couplings. - A clamping-deviee for electrically connecting the supply and branch wires in conduit boxes consist of an insulating-block A having a C-shaped channel passing through it in which is fitted a metal clamp comprising a metal jaw B and a clamping-screw C which passes through a hole in the block into the jaw. A short length of insulation is removed from the uncut supply wire, the connecting-wire is wrapped round the bared supply wire, and the wires fitted into the metal jaw from the side are clamped together by the screw.
Patent GB-458900-A (GB)
Title: Improvements in thermostatic electric switches
IPC: H01H37/48
Filed: 1936-05-11
Abstract: 458,900. Thermal switches. GROVER, R. V., Hollybank, The Common, Uxbridge, and DRAYTON REGULATOR & INSTRUMENT CO., Ltd., West Drayton, both in Middlesex. May 11, 1936, No. 13282. [Class 38 (v)] A thermal element such as a tube and rod 1 acts on a magnifying lever 3 pivoted at 4, the lever in turn acting on a bow spring 6, the upper end of which engages a notch in a contact arm 7 pivoted at its lower end. The bow spring maintains both the lever 3 and the arm 7 against their fulcrums and gives a snapaction as it moves across. It also serves to return the magnifying lever 3. The arm 7 pivots on two grooved pins 8.
Patent GB-143508-A (GB)
Title: Improvements in or relating to shutters for cinematograph apparatus
IPC: G03B9/10
Filed: 1920-05-13
Abstract: 143,508. Soc. Anon. des Etablissements Continsouza. May 17, 1919. [Convention date]. Kinematograph apparatus.-Consists in providing a shutter 1 of cylindrical or truncated conical form mounted on the vanes of a fan 2 serving to cool the lamp. To ensure silence and the same luminosity when projecting a fixed image, a device is provided whereby the fan is still driven but the film-shifting mechanism is cut out. A toothed wheel 8 driving the shutter 1 carries a pawl 9 fitted with a spring pin 10 to engage notches 13 or 14, whereby the pawl is held in or out of engagement with a ratchet 12 rigidly fixed to a toothed wheel 11 loose on the shaft 7 of the wheel 8. The wheel 11 drives the film mechanism so that, on reversing the direction of the -drive, the pawl 9 will rise and be held clear of the ratchet 12 by the spring pin 10 engaging the notch 14, thereby stopping the film-feed mechanism. The wheel 8, however, still drives the fan and shutter. A finger 15 is provided to press the pawl into the lower position where the spring pin 10 engages the notch 13 on returning to moving projection. An additional automatic safety shutter may be provided.
Patent GB-939118-A (GB)
Title: Flexible resilient seal strip
IPC: B60J10/00
Filed: 1962-04-06
Abstract: 939,118. Seal strips. GENERAL MOTORS CORPORATION. April 6, 1962 [May 26, 1961], No. 13322/62. Addition to 898,075. Class 20 (3). [Also in Group XXXII] A flexible resilient seal strip as described and claimed in the parent Specification is provided at spaced points along the strip with transverse ribs 88 which project externally of the strip and are adapted, when the strip is secured to a support e.g. 80, 82, Fig. 8 (see Group XXXII) to contact that support and act as water deflectors to deflect water running down the edgewall 68, Fig. 6, of a car door and which would be forced past the rib portion 65 over the base section 56 and into the interior of the car, to pass along the wall section 82, Fig. 8, outwardly of the door 12 and outboard of the strip 30 through the gap between the sealing strip and wall section 82. The deflectors 88 are preferably distributed along and pressed against the curved lower corner of the door, Fig. 6.
Patent GB-558837-A (GB)
Title: Improvements in and relating to machines for cutting power transmission and conveyor belting or the like
IPC: C14B5/04
Filed: 1942-09-22
Abstract: 558,837. Cutting belts &c. HAYDEN, Ltd., J. E., POTTER, J. J., and WHEATLEY, E. Sept. 22, 1942, No. 13330. [Class 31 (i)] A machine for cutting power transmission and conveyer belting and the like which is especially applicable for trimming the worn edges of a used belt is constructed with a pair of fixed knives 27 secured to guides 18, 19 which are adjustable by a right and left hand screw 24 to space the guiding edges at a distance equal to the width to which the belt is to be cut, the traversed by a screw 56 to pass between a clamp cutting edges being in alignment with the guiding edges. The belt may be cut transversely if desired by a knife 50 carried by a box-nut 54 53 and a plate 60 secured to the framing. While the edges are being trimmed the clamp 53 is held in raised position, and the work is led over a roller 14 under the raised clamp and is fed by rollers 29, 30 to the cutters. Guides 34, 35 guide the belt to the rollers 29, 30, and the cut belt is led between guides 37, 40 to guide rollers 42, 43, which may be arranged to feed the belt forwards while the lateral guiding is controlled by the guides 18, 19. The completed belt is finally drawn over a roller 16. The belt may be registered initially by drawing a line down its centre, and registering this line with an idicator 62 and a central mark 61 formed in the clamp 63. A graduated bar 21a upon which the transverse guides 18, 19 move assists exact registering of these.
Patent GB-904062-A (GB)
Title: Improvements in or relating to sieves
Inventor: BROOKS ERIC
IPC: B07B1/46
Filed: 1958-04-28
Abstract: 904,062. Sieves. TWEEDY & CO. Ltd., GEORGE. April 9, 1959 [April 28, 1958], No. 13339/58. Class 117. A rectangular metal frame 11 receives closely coiled stressed tension springs 12 forming a meshwork. The sieve is attached to a hopper and both are rocked by a link 17 connected to a rod 16 and driven by a cam 18 on a driven shaft 19.
Patent GB-273667-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: B06B1/10
Filed: 1927-05-18
Abstract: 273,667. Sulzer FrÞres Soc. Anon. July 1, 1926, [Convention date]. Oscillating-cylinder engines; engines with reciprocating cylinders. - Relates to means for' transmitting power to or from an inaccessible secondary body mounted for rotation on a primary body constrained to execute a cyclical movement, and depends on the principle that the secondary body, when its motion relative to the primary is unrestrained, makes one revolution per cycle relative to, and in phase with, the primary body, and when the phase of the secondary body is advanced or retarded, a tangential component of its centrifugal force does work on or absorbs work from the primary body. The Specification deduces mathematically the optimum ranges of values of angle of lag or lead, velocity, mass, and radius of mass centre of the secondary body for satisfactory balancing. It is found, inter alia, that the arm b, Fig. 8, of the secondary body m should, when running, be long in relation to the constraining-arm a of the primary body, but to facilitate starting, the mass m may be held inwards by a spring 91, which is ultimately overcome by centrifugal force. A reciprocating compressor (applicable also as a prime mover) comprises a stationary casing 73, Fig. 7, and a driving crankshaft 70, 71, on which is mounted a second casing 72, constrained by a rod 79 slidable in a trunnion bearing 79*, and carrying a crank 74* with eccentric weights 74, forming the secondary body. Ball bearings 71*, 88, 75 are provided. Induced rotation of the crank 74* drives a connecting-rod 76 and piston 77 in a cylinder 78, provided with valves 80, 81 and flexible inlet and discharge pipes 82, 83.
Patent GB-848958-A (GB)
Title: Improvements in or relating to electric protective devices
IPC: H01H83/22
Filed: 1957-04-26
Abstract: 848,958. Electrically - tripped switches. M.T.E. CONTROL GEAR Ltd., and OLLEY, N. H. July 25, 1958 [April 26, 1957], No. 13363/57. Class 38 (5). A three-phase protective device has heater coils 20 surrounded by bimetal strips 23, each with its free end in slots in two overlying tripbars 25, 26 coupled together by a cranked member 27, which is pivoted to both bars at spaced points so as to be rotated when the bars move relative to one another. An adjustable compensating bimetal strip 28 limits the movement of the bar 25 so that the bar 26 moves relative to the bar 25 on overload, and the slots in the bars are arranged so that the strips 23 can produce relative movement of the bars on phase unbalance. The member 27 moves anticlockwise (Fig. 3) to rotate a contact arm 35, against a biasing-spring 39 away from a contactarm 36, the biasing-spring 40 of which rotates it anticlockwise (Fig. 6) against a stop (not shown). The device is reset when a pushbutton 45 is pressed so that a bar 47 returns the contact arm 36 into latching engagement with the contact arm 35. A second bar 48 on the push-button plunger disengages a contact 49 from a contact 50 which is in series with the contact arms 35, 36 and with the coil of a contactor controlling the supply. Thus the pushbutton 45 may be used as a stop-button as well as for resetting. A normally open " start " push-button is also provided (Fig. 4, not shown).