baber/WOPTO huggingface dataset:
Patent DE-602006001720-D1 (DE)
Inventor: LABEMANO EDOARDO
IPC: F16K35/04
Filed: 2006-09-26
Abstract: The object of the present invention is a water intercepting device (1) of as distribution system. The device comprises a body (2) provided with an inlet duct (4) and an outlet duct (6), a shutting element (20) and a spring (45) that pushes the shutter towards the closure. The shutter is kept open by an end portion (28) of the stem (24). A heating candle is inserted in the end portion (28). When a leak is detected in the distribution network, the candle heats the stem of the shutter, which yields under the action of the spring, closing the device. The device is sold together with spare shutters.
Patent DE-602006005661-D1 (DE)
Inventor: AL GHATTA HUSSAIN
IPC: C08K5/00
Filed: 2006-05-25
Abstract: Compositions of polyester and polyamide blends with vanadium, manganese, or chromium organo compounds are disclosed. These blends have utility in that the metal compound significantly reduces the haze of the nylon in the polyester, and in the case of vanadium, the metal-polyester composition scavenges oxygen.
Patent DE-602006010676-D1 (DE)
Inventor: DEHOTTAY PHILLIPPE MARC
IPC: C12P21/00
Filed: 2006-03-21
Abstract: The present invention relates to a fermentation process comprising a fermentation step of growing a strain of  Corynebacterium diphtheria  in medium in a fermenter under conditions of agitation sufficient to maintain a homogenous culture and limited aeration such that pO2 within the culture falls to less than 4% for the majority of the fermentation step.
Patent DE-602006018187-D1 (DE)
Inventor: ENRIETTI PIERO
IPC: B29C45/27
Filed: 2006-09-06
Abstract: A cylindrical switch has one or more passages which open onto a lateral cylindrical surface of the switch. The switch is capable of being tightly received in a cylindrical hole in a hot plate and of being selectively orientated so that the passages are angularly in line with or offset from two or more channels in the hot plate which open onto the hole in order to selectively permit, interrupt or divert the flow of molten plastics material between the aforesaid channels. The switch incorporates a circuit for a cooling fluid.
Patent DE-602006018971-D1 (DE)
Inventor: BEZWADA RAO S
IPC: C08G18/52
Filed: 2006-09-06
Abstract: Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: Rn .C00-(X)P-R' Rn O-(X)p-R' W. .O- (X)p-R' OCN Rn Rn NH-(Y)P-R' "COO-(X)P-R' V^. ^0-(Y)P-RI OCN H 2 N or the diamines and diisocyanates thereof, wherein each X represents a member independently selected from -CH 2 COO- (glycolic acid moiety), -CH(CH 3 )COO- (lactic acid moiety), -CH 2 CH 2 OCH 2 COO- (dioxanone), -CH 2 CH 2 CH2CH 2 CH 2 COO- (caprolactone moiety), -(CH 2 )yCOO- where y is one of the numbers 2,3,4 or 6- 24 inclusive, and -(CH 2 CH 2 O)Z CH 2 COO- where z' is an integer between 2 and 24, inclusive; each Y represents a member independently selected from -COCH2O- (glycolic ester moiety), -COCH(CH 3 )O- (lactic ester moiety), -COCH 2 OCH 2 CH 2 O- (dioxanone ester), -COCH 2 CH 2 CH 2 CH 2 CH 2 O- (caprolactone ester), -CO(CH 2 )mO- where m is an integer between 2, 3, 4 or 6 - 24 inclusive, -COCH 2 O(CH 2 CH 2 O)n- where n is an integer between 2 and 24, inclusive; R' is hydrogen, benzyl or an alkyl group, the alkyl group being either straight-chained or branched; p is an integer between 1 and 4, inclusive; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and -NO 2 , which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable poly- mers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.
Patent DE-602006019710-D1 (DE)
Inventor: KUMAR YATENDRA
IPC: A61K31/40
Filed: 2006-05-03
Abstract: The present invention relates to crystalline magnesium salts of atorvastatin, processes for their preparation, pharmaceutical compositions thereof and compositions for treating mammals suffering from hypercholesterolemia.
Patent DE-602007003682-D1 (DE)
Inventor: CORINALDI ALESSANDRO ALCIDE GINO BENVENUTO
IPC: B62D1/04
Filed: 2007-01-26
Abstract: The present invention addresses a vehicle steering-wheel cover comprising a body and a support element having a predetermined profile, said support element being associated to said body. The characterizing feature of the present invention is that diffuser means for diffusing a light emitted from at least one light source, as well as electronic control means for controlling said light source to obtain a visual effect in response to data concerning the status of the vehicle are interposed between said body and said support element.
Patent DE-602007005941-D1 (DE)
Inventor: AL-MAAITAH AYMAN ADNAN SALIM
IPC: F25B17/08
Filed: 2007-08-09
Abstract: A heat-driven adsorption cooling unit, comprising: 
- a condenser having an input end and an output end; 
- an evaporator having an input end and an output end, the input end being connected to the output end of the condenser via an operable valve; and 
- a series of sorption-desorption generators, each of which has input and an output ends for connection to the condenser and evaporator to create a refrigerant flow circuit, and a heat supply for operating each generator at high and low temperatures, the generators being operable to flow refrigerant through the condenser and evaporator to provide a cooling effect at the evaporator;  
wherein 
the series of generators comprises two pairs of generators, each pair comprising: 
- a first generator having an output end connected to the input end of the condenser via a first non-return valve arranged to prevent flow from the condenser to the first generator; and 
- a second generator having an input end connected to the output end of the evaporator via a second non-return valve arranged to prevent flow from the second generator to the evaporator, and an output end connected to the input end of the first generator via a third non-return valve arranged to prevent flow from the input end of the first generator to the output end of the second generator; 
each pair of generators being separately operable to drive fluid through the condenser and evaporator to provide a cooling effect.
Patent DE-602007012872-D1 (DE)
Inventor: LAY WARREN T
IPC: E21B21/10
Filed: 2007-06-06
Abstract: A device is for channeling solids and fluids within a reverse circulating, fluid operated drill that has first and second ends, an axis extending between the ends, a casing and a piston. The casing has a bore extending between the drill ends and drive and valve chambers defined within the bore, the piston being movably disposed within the bore. The channeling device includes an elongated body disposeable within the casing bore so as to extend along the casing axis and through the piston. The body has a longitudinal axis, a first end locatable proximal to the drill first end, and a second end spaced from the first end and locatable proximal to the drill second end. A material transport passages extends axially between the two body ends and provides a path for moving solid materials through the drill. A fluid passage is configured to couple the valve and drive chambers.
Patent DE-602008000583-D1 (DE)
Inventor: LELASSEUX XAVIER
IPC: F16D23/04
Filed: 2008-11-12
Abstract: The device i.e. torque transmission device (1), has conical upper rings (26-1, 26-2), lower ring (26-3) and intermediate rings (28-1, 28-2) connected to a hub (22) and an idle pinion (20) using driving dogs (30, 32). The rings are set in contact by a control force exerted by a sleeve (24) to transmit a torque to the pinion. Sides of the dog in contact with sides of cavities (34, 36) during the torque transmission, are inclined at a non zero angle relative to a shaft axis such that tangent of the angle is less than a frictional coefficient value between surfaces of dog sides and of cavities.
Patent DE-602008006298-D1 (DE)
Inventor: VOGEL HERMAN
IPC: G01B13/12
Filed: 2008-06-27
Abstract: A gas gauge (100) for sensing distance to an object (132) includes a gas supply system (102) and a nozzle (128) that supplies the gas from the gas supply system (102) to a space between the nozzle (128) and the object (132). For example, the gas supply system (102) supplies the gas with a flow rate that corresponds to a flow in a transitional region between laminar flow and turbulent flow. A surface of the nozzle (128) may be roughened so as to increase a friction factor across the surface, which increases gas pressure drop and also a gain of the nozzle (128). Noise generated by the increased flow rate may be attenuated using one or more strategically placed Helmholtz attenuators and/or snubbers (120).
Patent DE-10081288-D2 (DE)
Inventor: POLZ ANDREAS
IPC: B60R21/34
Filed: 2000-05-17
Granted: 2002-07-11
Abstract: A front hood assembly has a front hood of a motor vehicle that is hinged to the chassis of the motor vehicle via at least one multi-jointed hinge, said front hood being lockable via at least one hood lock. The at least one multi-jointed hinge comprises at least one connecting rod that is variable in length under the impact of a collision with a pedestrian. The assembly provides a protection for pedestrians that is technically feasible and can be implemented at low cost.
Patent MD-1250-F1 (MD)
Title: Method of tracheoplasty
Inventor: TOPOR BORIS
IPC: A61B17/00
Filed: 1998-09-30
Abstract: The invention relates to the medicine, in particular, to the plastic surgery and can be used in otorhynolaryngology for removal of trachea defects and stenosis. The method according to the invention, comprises incision of defect edges, situation of the transplant on the separated and mobilized tracheal mucosa, fixation thereof to the defect edges an
Patent MD-1368-F1 (MD)
Title: Installation for electric spark alloying
Inventor: SOFRONOV ION
IPC: B23P17/02
Filed: 1998-12-14
Abstract: The invention refers to the field of materials processing with an electric spark and may be used for recovery of the weared out machine parts. The installation for electric spark alloying comprises a vibrator connected to the independent power source, matching transformer one of secondary windings of which is connected to the control unit input and to the output is connected an electric spark generator consisting of a thyristor bridge, to the diagonal of which is connected a capacitor and to another one there are subsequently connected the alloying part and an alloying electrode connected to a constant voltage source with a clearance between them, a high frequency generator connected in parallel to the part and to the electrode through an other secondary winding of the matching transformer to the circuit of which is it in series connected a diode. The technical result consists in obtaining of some eroding impulses without increasing the electrode vibration frequency. Claims: 1 Fig.: 1
Patent BR-0105527-F1 (BR)
Title: corpos moedores para moinhos revolventes
Inventor: IVAN JOSÉ DOS SANTOS
IPC: B02C15/00
Filed: 2001-11-28
Abstract: <um>corpos moedores para moinhos revolventes.<mv> o presente certificado de adição refere-se a corpos moedores para moinhos revolventes compreendendo um corpo (1) dotado de uma em formato tronco de cone (2), tendo na base menor (3) uma calota esférica (4) e uma forma arredondada (5) na base maior (6), sendo as dimensões do corpo (1) baseadas no diâmetro (7) da base maior (6) do tronco de cone (2), sendo ditos corpos moedores utilizados em qualquer tipo de moinho revolventes, como moinhos tubulares de bolas, moinhos verticais tipo torre comercialmente denominados vertimili e moinhos revolventes de eixo giratório e carcaça fixa comercialmente denominados isamill.
Patent MD-3706-F1 (MD)
Inventor: ROSCA ALEXANDRU
IPC: C01B17/48
Filed: 2008-02-19
Abstract: Inventia se refera la industriile vinicola si a conservelor, si anume la obtinerea solutiei apoase de anhidrida sulfuroasa. Procedeul de obtinere a solutiei apoase de anhidrida sulfuroasa (SO2) prevede dizolvarea dozata a SO2 gazos in apa, la agitarea circulara continua cu o viteza de 20…65 rot./min in decurs de 30…60 min, repausul solutiei obtinute timp de 60…90 min si ambalarea produsului finit, totodata dizolvarea se efectueaza intr-un rezervor ermetic umplut cu apa la 75…80% din volum si care asigura micsorarea inaltimii vartejului format la agitare. Instalatia pentru realizarea procedeului solicitat include un rezervor cilindric (1) situat pe un suport (2), in interiorul caruia este montat un arbore (4), pe care sunt instalate niste agitatoare (5) cu palete duble (6), amplasate echidistant in trei nivele, totodata agitatoarele marginale sunt paralele intre ele, iar cel de mijloc este amplasat sub un unghi ascutit fata de celelalte, pe capatul inferior al arborelui este instalat orizontal un barbotor (7) perforat din otel inoxidabil. In rezervor paralel cu peretii sunt instalatepatru bariere-reflectoare (15), iar la fundul rezervorului sunt montate un stut  de admisie (8) a SO2 gazos conectat la barbotorul (7) si un stut de evacuare (16) a solutiei de SO2, totodata rezervorul este dotat cu un termometru (17), un robinet pentru prelevarea probelor (18), un indicator de nivel (22), iar in partea superioara cu un stut de admisie (19) a apei, o gura de revizie tehnica (21) si un  motor electric (3); instalatia mai include un cantar (13) zecimal, o butelie  (9) cu SO2 lichefiat si un debitmetru (11). Rezultatul consta in majorarea eficacitatii procesului de obtinere a solutiei de anhidrida sulfuroasa cu concentratia de 5%.
Patent HU-S1600017-I1 (HU)
Title: (4r)and(4s)diastereoisomers of (2s)-2-[2-oxo-4-propylpyrrolidinyl]-butaneamide and pharmaceutically acceptable salts of them and their use
IPC: C07D207/273
Filed: 2016-04-13
Abstract: The invention concerns 2-oxo-1-pyrrolidine derivatives of general formula (B. geometrical isomers, enantiomers, diastereoisomers, mixtures of each of these and pharmaceutically acceptable salts thereof. whereinR<sup>1</sup> is methyl,R<sup>2</sup> and R<sup>4</sup> are hydrogen.R<sup>3</sup> is alkyl or haloalkenyl, andX is -COOH. -COOMe or -COOEt.
Patent ES-2581403-R1 (ES)
Title: GUÍA QUIRÚRGICA PARA LA COLOCACIÓN DE IMPLANTES DENTALES Y HERRAMIENTA PARA EL MONTAJE y DESMONTAJE DE DICHA GUÍA
Inventor: ALSINA FONT FRANCESC
IPC: A61C8/00
Filed: 2015-03-02
Abstract: Guía quirúrgica para la colocación de implantes dentales y herramienta para el montaje y desmontaje de dicha guía.#La guía quirúrgica para la colocación de implantes dentales de la invención tiene por objeto guiar al cirujano durante el fresado del lecho óseo de un paciente, previo a la colocación de un implante dentro de la operación de sustitución de una o varias piezas dentales, comprendiendo básicamente un mango (1) que en al menos uno de sus extremos presenta un orificio (2) y un casquillo (3) reductor de fresado que se une al mango a través de dicho orificio (2) y que cuenta con un agujero pasante (10) circular de diámetro constante para permitir el paso ajustado de una fresa (13) durante la operación de taladrado, una primera porción (7) que se une al orificio (2) del mango (1) y una segunda porción (8) susceptible de ajustarse por fricción al diámetro interno del orificio de guiado (4) de una férula (5), y donde además se describe una herramienta utilizada para el montaje y desmontaje del casquillo (3) reductor en el mango (1) compuesta por un soporte (15) y un pisón (19).
Patent SI-0820548-T1 (SI)
Title: A composition for the nutritive layer of grass sward
Inventor: CORNARO VITTORIO FEDERICO
IPC: E01C13/08
Filed: 1996-04-09
Abstract: A composition for a nutritive layer for grass sward is described, comprising, in percentage by volume, from 40 to 80 % of volcanic gravel and from 0.8 to 60 % of green vegetable compost. The composition preferably also contains up to 15 % by volume of pumice in the form of granules and 2 10<-3> % - 3 10<-3> % by volume of bone meal. A method for making grass sward using the above described composition is also described.
Patent SI-1112095-T1 (SI)
Title: Biologically active implants
Inventor: SCHMIDMAIER GERHARD DR
IPC: A61L31/10
Filed: 1999-09-10
Abstract: This invention relates to an implant for treating pathological changes in the spinal column and/or locomotor system. According to one embodiment of the invention, the implant has a surface, a body, and an enamel-like or varnish-like coating that is up to 100 μm thick, comprises a biodegradable polymer such as polylactide which has a mean molecular weight of 100 kDa or less, forms an adhesive bond to the surface of the body such that when the implant is implanted, mechanical friction will not abrade or damage the coating, and is adapted to contact bone when implanted. This coating has an osteoinductive effect, which promotes the healing of fractures. Additional osteoinductive materials such as growth factors may be incorporated in the coating. The invention also relates to a method for producing such an implant using the following steps: preparing a dispersion of a biodegradable polymer in an organic solvent; applying the dispersion on the surface to be coated; and allowing the organic solvent to evaporate.
Patent SI-1117643-T1 (SI)
Title: New crystal modification n of torasemide
Inventor: FILIC DARKO
IPC: C07D213/53
Filed: 1999-10-01
Abstract: New crystalline polymorph of torasemide, characterized by its powder x-ray diffraction pattern data; and its preparation by controlled acidification of alkaline torasemide solutions at specific temperatures and over specific periods. New crystal modification (form III) of torasemide, with spacings (d) between lattice planes, expressed in angstroms as 15.3898, 12.5973, 11.4565, 9.7973, 9.5493, 8.6802, 8.2371, 7.6351, 7.3356, 6.9759, 6.5351, 6.3240, 6.1985, 5.9521, 5.6237, 5.5623, 5.4040, 5.1119, 4.8738, 4.7865, 4.6986, 4.5985, 4.4602, 4.3405, 4.2552, 4.1829, 4.0768, 3.9377, 3.8659, 3.8429, 3.7801, 3.7248, 3.6239, 3.5556, 3.4825, 3.4130, 3.3055, 3.2298, 3.1786, 3.1278, 3.0699, 3.0078, 2.9549, 2.9056, 2.8541, 2.7686, 2.6988, 2.6610, 2.6293, 2.5549, 2.5236, 2.4485, 2.4161, 2.3671, 2.3133, 2.2788, 2.2312, 2.1852, 2.1468, 2.0957, 2.0617, 2.0273, 1.9896, 1.9688, 1.9274, 1.8853, 1.7931, 1.7449, 1.7169, 1.6512, 1.6122, 1.5601, 1.5320, 1.5057, 1.4521, and 1.3773. An independent claim is also included for the preparation of this new modification form III, by controlled acidification of an alkaline torasemide solution with inorganic or organic acids, with or without addition of a seed crystal, at a temperature of 0-35[deg]C within a period of 0.25-25 hours. ACTIVITY : Diuretic; cardiovascular; hypotensive; cardiant; ophthalmological; cytostatic; anticonvulsant; antiallergic; antiasthmatic. MECHANISM OF ACTION : None given.
Patent TR-199700614-T1 (TR)
Inventor: MARAIS THOMAS ALLEN DES
IPC: A61L15/00
Filed: 1996-01-11
Abstract: Sulu akiskanlari, özellikle idrar gibi vücuttan atilan akiskanlari tutabilen ve dagitabilen emici köpük maddeleri. Bu emici köpükler, yerçekimi yardimiylai veya yerçekimi yardimi olmaksizin siviyi tutmalarina imkan veren nispeten yüksek kilcal emme basinçlariyla, agirlik basina kapasite özelliklerini birlestirirler. Bu emici köpükler, ayrica akiskani çökme olmaksizin etkili bir sekilde, köpük esasli emici akiskan depolama bilesenleri dahil olmak üzere daha yüksek emme basincina sahip depolama maddelerine birakabilirler. Bu emici köpükler, yüksek iç fazli emülsiyonlarin (HIPE'ler) polimerlestirilmesiyle hazirlanirlar.
Patent TR-199902964-T1 (TR)
Inventor: CLAISSE JEAN-JACQUES
IPC: H02G3/04
Filed: 1999-04-01
Abstract: Bulus, genelde U-seklinde bir en kesit boyunca bir taban (11) ve en az birinin üzerinde en az bir elektrik kablosunun giris veya çikisi için delikler (13) bulunan iki yan kanat (12) içeren bir kablo kanaliyla ilgilidir. Bulus, bahsi geçen kablo kanalinin en az bir yan kanadin (12) deliklerinden (13) en az biri ile taban (11) arasinda en az bir açiklik (25) bulunmasiyla karakterize edilir. Bulus özellikle salter donanimi kabin kablo kanallari için uygulanabilir.
Patent AT-E224903-T1 (AT)
Inventor: MACKEWITZ THOMAS DR
IPC: C07F9/6568
Filed: 2000-02-25
Granted: 2002-10-15
Abstract: Preparation of phosphabenzene compounds (A) by reacting the corresponding pyrilium salt (III) with phosphine, optionally in presence of solvent but without addition of acid catalyst or base. (III) and phosphine are contacted at about 0 degrees C then reacted at 0-200 degrees C at pressure over 1 bar.  (A) have formulae (I) or (II);  R<1>-R<6> = hydrogen, COOM, SO3M, NR3X, NR2, OR, COOR, SR, 1-12C alkyl, 6-12C aryl, 7-12C aralkyl or alkaryl, or 3-6C heterocyclylalkyl with 1-3 heteroatoms, optionally substituted by the above groups, or two or more R groups together form a fused aliphatic ring;  M = hydrogen, ammonium or alkali metal;  X = anion;  R = hydrogen or 1-6C alkyl;  W = bridge comprising covalent bond, oxygen, sulfur, amino, di(1-6C)alkylsilyl or 1-16C residue that includes one or more linked cyclic or aromatic nuclei and optionally interrupted by 1-3 heteroatoms, and each o- or m-position on the phosphabenzene ring that is not bound to the bridge may be substituted by R<1>-R<6>.
Patent AT-E276028-T1 (AT)
Inventor: EBBRECHT THOMAS DR
IPC: B01D19/04
Filed: 2000-04-29
Granted: 2004-10-15
Abstract: Water-insoluble polyoxyalkylene-polysiloxane block copolymers with poly-(oxy-1,4-butanediyl) groups in the polyoxyalkylene s chains are used as foam suppressants for aqueous media. The use of water-insoluble poly-(oxy-1,4-butanediyl)-containing polyoxyalkylene-polysiloxane block copolymers of formula (I foam suppressants for aqueous media is claimed: R<1> and/or R<7> = R<2> or -(R<4>)w-(R<5>)x-(R<6>)-R<8>; R<2>, R<3> = 1-24C alkyl or optionally substituted phenyl with up to 24 C atoms; R<4> = -O-, -NH-, -NR<2>-, -S- or -(O-Si(CH3)2)u-; u = 2-200; R<5> = 1-24C alkylene or -CnH2n-f-(R<2>)f-O-CmH2m-g-(R<2>)g-; f, g = 0-12; n, m = 1-18; R<6> = -O-(C2H4-aR<9>aO)b-(CH2CH2CH2CH2-cR<10>c</ SB>)d-, with any sequence of polyoxyalkylene segments, especially block copolymers such as statistical polymers and combinations of these; R<9> = 1-4C alkyl; R<10> = 1-6C alkyl, with the proviso that the total content of C2H4O groups in all residues R<6> is not more than 40 wt%; a = 0-3; b = 0-200; c = 0-2; d = 2-40; (b+d) = 3-240; R<8> = H, optionally substituted 1-6C alkyl or acyl; v = 3-200; w, x = 0 or 1; y = 0-200, with R<1> and/or R<7> = -(R<4>)w-(R<5>)x-(R<6>)-R<8> if y = 0
Patent AT-E374607-T1 (AT)
Inventor: GORFINE STEPHEN R
IPC: A61K9/02
Filed: 1995-04-10
Granted: 2007-10-15
Abstract: A pharmaceutical composition contains a nitric oxide donor and advantageously an optional corticosteroid and/or topical anaesthetic. The composition is useful in a method for treating anal disorders such as anal fissure, anal ulcer, hemorrhoidal disease, levator spasm, and so forth, by topical application to or proximate the affected area.
Patent AT-E270518-T1 (AT)
Inventor: CHAN CHI TONG
IPC: A47J37/08
Filed: 2000-08-31
Granted: 2004-07-15
Abstract: An electric automatic pop-up toaster has a carriage 10 and a pivotably connected manually operative arm 16 for moving the carriage 10 to a lowermost position for toasting in well-known manner. At the beginning of each toasting cycle, the arm 16 is horizontal and a latching plate 20 is magnetically held down to hold the arm and the carriage in a lowermost position. The arm 16 presses against a wire spring 22 to hold closed a power switch (not shown) that supplies power to heating elements of the toaster. The latching plate is (magnetically) released at the end of each toasting cycle by a timer. This allows the carriage 10 to move upwards to pop-up toasted bread in a usual way. However should the carriage fail to move upwards when the latching plate is released, the arm 16 is pivoted by a spring 25 and tilted to the position shown in the Figure. The wire 22 is therefore released and enters a slot 26 in a bracket 27 mounted to the carriage 10. The switch 18 opens and remains open to prevent power being re-instated to the heating elements. Even if the arm 16 is thereafter pushed down, the switch 18 cannot be closed because no downward pressure can be applied to the spring 22 until the carriage 10 has moved upwards beyond an intermediate position.