baber/WOPTO huggingface dataset:
Patent SK-28599-A3 (SK)
Title: An improved cladding board mounting system
Inventor: BADO JOHN J
IPC: E04F13/08
Filed: 1997-09-05
Abstract: An improved cladding board mounting system for mounting cladding boards (100) adjacent a surface to be concealed. Each cladding board (100) includes at least one support member (130) on the interior face (120) of the cladding board. The system further includes at least one mounting member (170) which includes an engaging formation (172) adapted for releasable engagement with a complementary engaging formation (132) of a respective support member. The mounting member also includes a second segment (174) for releasable connection to the surface to be concealed. Preferably a mounting bracket (70) extends between the surface to be clad and the mounting member (170). <IMAGE>
Patent SK-38393-A3 (SK)
Title: Device for rubber grinding into dust
Inventor: GOHLISCH HANS J
IPC: B02C4/12
Filed: 1993-04-22
Abstract: The invention relates to a device for pulverizing rubber lumps. The object of the invention is, using simple means and reducing the energy outlay, to grind rubber lumps into a floury powder. The invention consists in a rotating roll being arranged in a fixed shell with a recess in the form of a hollow cylindrical segment, said roll dipping into said recess, in such a way that a gap (nip) is formed between the shell and the roll, and in the recess being enlarged in a funnel-shaped manner at the side at which the roll surface enters the recess during roll rotation, or in a funnel (hopper) being arranged above the point at which the roll surface enters the recess during roll rotation. <IMAGE>
Patent SK-84594-A3 (SK)
Title: Bifunctional variants of urokinase with improved fibrinolytic properties and with trombininhibiting effect
Inventor: STEFFENS GERD J
IPC: C12N9/72
Filed: 1994-07-14
Abstract: The solution concerns bifunctional derivates of urokinase with improved fibrinolytic activity and thrombin inhibiting effect, plasmids used for obtaining of these polypeptides as well as thrombolytics which comprise bifunctional derivates of urokinase as an active principle.
Patent SK-93196-A3 (SK)
Inventor: HOLUB PETER
IPC: C10L11/00
Filed: 1996-07-16
Abstract: Prípravok na podpaľovanie drevného uhlia je tvorený
zmesou 25 až 65 % hmotn. nižšieho alkoholu a 35 až
75 % hmotn. kondenzačného produktu mastných alkoholov
s etylénoxidom. Nižší alkohol je alkohol vybraný
zo skupiny metanol, etanol, propanol, izopropanol,
butanol, alebo ich zmes. Kondenzačným produktom je
kondenzačný produkt mastných alkoholov s dĺžkou reťazca
alkoholu 02 až C20 s etylénoxidom, pričom počet
mólov etylénoxidu je výhodne 3 až 20. Prípravok
ďalej výhodne obsahuje do 2 % hmotn. farbiva a do
2 % hmotn. aromatickej látky.
Patent CZ-119291-A3 (CZ)
Inventor: PROKOPEC PAVEL
IPC: A47J27/00
Filed: 1991-04-26
Abstract: Způsob spojení topného elementu (3) s télesem základní nádoby (1), sloužící pro ohřev kapali ny, je použitelný zejména ve fritovacích hrncích a varných nádobách na vodu či jiné kapaliny. Topný element (3) je umístěn v drážce ve dnu nebo stěně základní nádoby (1) pro ohřev kapali ny aje překryt krycím víčkem (2).
Patent CZ-192993-A3 (CZ)
Title: Method for determining amount of organic substances in a liquid sample and apparatus for making the same
Inventor: MANOOK BOGHOS AWANES
IPC: G01N21/49
Filed: 1992-03-18
Abstract: An ultra-violet absorbence-based monitor (1) for on-line monitoring of organic pollution in water at on-site locations measures the reduction in UV light passed through a sample and also makes measurements to provide indications of the amounts of visible light absorbed by, and scattered by, the samples respectively. The amount of organic matter is determined from the measured reduction in UV light by a calculation in which the results of the other measurements are used for compensation purposes. The sampling apparatus (40) comprises a buoyant sampling head (41) with an inlet port (48) submerged beneath the water surface (44).
Patent CZ-208091-A3 (CZ)
Inventor: SVACHOUCEK VACLAV ING
IPC: F42B5/02
Filed: 1991-07-08
Abstract: Náboj je určen pro automatické a poloautomatické zbraní s
jednou nebo několika hlavními. Sestává ze střely (1), polospalitelné
nábojnice s vnitřní náplní a zápalky (3). Sámonosný
váleček (2) ze spalitelné masy je zasazen do ústí (8)
nespalitelného nosiče (4), jehož stěna (7) má směrem od ústí.
:Λ (8) k zážehovému otvoru (6) proměnnou sílu.
Patent CZ-210792-A3 (CZ)
Title: Process for preparing cheese
Inventor: NIELSEN JOHN
IPC: A23C19/05
Filed: 1991-11-06
Abstract: Method of preparing cheese for distribution by first concentrating milk through separation of the whey to such an extent that the concentrated milk's DM content corresponds to the DM content in the finished cheese and subsequently adding the additives necessary for production of the cheese, e.g. rennet, and packaging the mixture of the concentrated milk and the additives in distribution-ready packagings in which the milk coagulates and the cheese is formed and matured. Through adding to the concentrated milk, preferably together with the remaining additives, a substance with the capacity to form CO2 under the action of lactic acid bacteria occurring in the milk, e.g. citric acid, a controlled development of tubular passages and other hollows characteristic of cheese is made possible during the maturing of the cheese in the said packagings.
Patent CS-346691-A3 (CS)
Title: Complexes containing s-(+)-phenylalkanoic acids and alpha-hydroxyalkanoic acids
Inventor: PARADIES HENRICH HASKO PROF DR
IPC: A61P25/04
Filed: 1991-11-15
Abstract: Complexes containing S(+)-ibuprofen, method for the production of these complexes and pharmaceutical preparations containing these complexes are described.
Patent CZ-446789-A3 (CZ)
Title: Polymer stabilizing agent based on diphosphaspiroundecane derivative and mixtures containing thereof
Inventor: HORN WILLIAM E
IPC: C08L23/06
Filed: 1989-07-24
Abstract: A composition is provided which comprises a 3,9-bis(2,4,6-tri-t-alkylphenoxy)-2,4,8,10-tetroxa-3,9-diphosphaspiro[ 5.5]undecane, and polymer compositions are provided which include a polymer and an effective amount of one or more 3,9-bis(2,4,6-tri-t-alkylphenoxy)-2,4,8,10-tetroxa-3,9-diphosphaspiro[ 5.5]undecane.
Patent CZ-152295-A3 (CZ)
Inventor: SIMEK MARTIN ING
IPC: C10B25/16
Filed: 1995-06-13
Abstract: Zařízení pro přenos kotevních sil z kleštiny na dveřní rámy
komor koksovacích pecí, využívající kleštiny skříňového
tvaru nebo tvaru I, obsahující soustavy nerovnoramenných
pák s pružnými prvky a tlačnými šrouby, tvořené dvojicemi
úchytů (14), ve kterých jsou otočně na čepech (3) uloženy
nerovnoramenné páky (2) s poměrem ramen li:l2 1· V
delších ramenech (22) jsou vedeny tlačné šrouby (23), procházející
bočnicemi (11) kleštiny (1) k opěrám (5) pružných
prvků (4), umístěných u vnější pásnice (12), jejichž osy (oi)
jsou kolmé na podélnou osu (o) topné stěny (9) koksovací
pece. V kratších ramenech (21) nerovnoramenných pák (2)
jsou vedeny tlačné šrouby (23), jež jsou v neustálém styku s
dveřním rámem (6).
Patent CZ-157897-A3 (CZ)
Title: Vitamin d3 analog, process of its preparation and pharmaceutical composition containing thereof
Inventor: BATCHO ANDREW DAVID
IPC: A61K31/59
Filed: 1997-05-22
Abstract: Compounds of the formula <CHEM> wherein R is hydrogen, fluorine, or hydroxy, R2 is hydrogen, lower alkyl or halogen, X is =CH2 or when R is hydroxy, X is (H,H) or =CH2, and A is -C IDENTICAL C-, <CHEM> or -CH2-CH2-, are useful in the treatment of hyperproliferative skin disorders, neoplastic diseases, sebaceous gland diseases, and conditions associated with photodamaged skin.
Patent CZ-167396-A3 (CZ)
Title: Partition wall
Inventor: LEMMER JOACHIM
IPC: E04C2/04
Filed: 1996-06-07
Abstract: A lateral member for supporting frames used in the prodn. of wells in finished houses etc., where the frame consists of longitudinal and lateral sections, both of which can be adjusted relative to each other, comprises upper and lower horizontal, stiffening carriers (8,9). The lateral member (5,6) carriers are integrated into a support plate (16). The support plate pref. consists of PTFE.
Patent CZ-200018-A3 (CZ)
Title: Colchinol derivatives and their use for preparing pharmaceutical preparations
Inventor: DOUGHERTY GRAEME
IPC: C07C233/23
Filed: 1998-07-06
Abstract: Colchinol derivatives of formula (I) wherein R1, R2, R3 and R6 are each independently H, optionally substituted alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, alkanoyl, PO3H2; X is carbonyl (CO), thiocarbonyl (CS), methylene (CH2) or a group CHR4; R4 is OH, O-alkyl or NR8R9; R5 and R7 are each independently H, alkyl, halogen, hydroxy, alkoxy, nitro or amino; R8 is H, optionally substituted alkyl, cycloalkyl, alkanoyl, thioalkanoyl, aryl, heteroaryl, arylcarbonyl, heteroarylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, arylaminocarbonyl, alkylsulfonyl, arylsulfonyl, aminosulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl or arylaminosulfonyl; and R9 is H, alkyl or cycloalkyl and the pharmaceutically acceptable salts, solvates, and hydrates thereof have been found to be useful for treatment of diseases involving angiogenesis. Some of these compounds are novel. Particularly preferred are those compounds in which  R6 is PO3H2.
Patent CZ-202294-A3 (CZ)
Inventor: BUCZKOWSKA EWA KATARZYNA
IPC: C04B28/26
Filed: 2022-02-28
Abstract: Odlehčený tepelně izolační geopolymerní kompozit pro speciální aplikace obsahuje cement složený z hlinitokřemičitého pojiva na bázi metakaolinu a/nebo mleté vysokopecní granulované strusky a/nebo odletového popílku ve zvoleném jednotkovém množství s dalšími příměsemi, kterými jsou alkalický aktivátor tvořený vodným roztokem křemičitanu sodného nebo draselného v množství tvořícím 65 až 112 % hmotnosti použitého geopolymerního cementu a duté skleněné mikrokuličky vyrobené ze sodnovápenatého skla, borosilikátového skla či jejich směsi o velikosti mikrokuliček do 150 µm, přičemž obsah mikrokuliček je od 0,1 až do 20 % hmotnosti použitého množství geopolymerního cementu. Dalšími příměsemi kompozitu jsou buď jednotlivě nebo ve vzájemné kombinaci uhlíková mikrovlákna, mikrosilika, mikrocelulóza v práškové formě, disiřitan sodný v práškové formě a sádra v práškové formě. Způsob výroby geopolymerního kompozitu zahrnuje míšení geopolymerního cementu s alkalickým aktivátorem po dobu 2 až 5 minut, příměs uhlíkových mikrovláken s následným promícháním po dobu 4 až 8 minut, následuje přidání mikrosiliky a/nebo mikrocelulózy v práškové formě a/nebo disiřičitanu sodného v práškové formě s následným promícháním po dobu 2 až 5 minut, přídavek dutých skleněných mikrokuliček do směsi a její míchání po dobu 1 až 3 minut a nakonec se přidá do kompozitu sádra v práškové formě a následně se promíchá po dobu 1 až 3 minut.
Patent CZ-234495-A3 (CZ)
Inventor: DRASNER IVO ING
IPC: C23C18/42
Filed: 1995-09-12
Abstract: Stříbřící prostředek pro bezproudové nanášení
stříbrné vrstvy, zejména na vnitřní povrch
skleněných nádob, obsahuje redukční činidlo,
alkalický hydroxid, dusičnan stříbrný a
případně hydroxid amonný a dále obsahuje
organickou sloučeninu, která v alkalickém
prostředí pH 10 uvolňuje halogenldový iont,
například halogenovaný alifatický uhlovodík
Ci- C4, halogenovaný alifatický alkohol nebo
kyselinu Ci - C4 nebo halogenovaný fenol,
a/nebo povrchově aktivní látku s nejméně
jednou aktivní skupinou typu -NH2, =NH,
.N, =S, -CH jako například piperazin, tetraetylenpentamin,
dietylentetramin.
Patent CZ-268195-A3 (CZ)
Title: Process and apparatus for for supplying air into a ventilated room
Inventor: NYSTROM BERNT
IPC: F24F7/00
Filed: 1994-04-14
Abstract: When introducing supply air into a treated space (A), the supply air is conveyed from a source (B) of supply air by way of a terminal device (10) opening into the treated space, the supply air being discharged from the terminal device (10) with a certain momentum substantially vertically and downwardly along an upstanding surface (E) defining the treated space. In a supply air terminal device for introducing the supply air the air passageway (13) between the supply air intake and the supply air outlet is elongate, and the terminal device (10) is adapted to be mounted in a vertical position on an upstanding surface (E) defining the ventilated space (A) with the supply air outlet directed downwardly and positioned adjacent said defining surface.
Patent CZ-317998-A3 (CZ)
Title: Chimeric isoprenoidsynthases process of their preparation
Inventor: CHAPPELL JOSEPH
IPC: A61K31/01
Filed: 1997-04-11
Abstract: Disclosed is a nucleic acid molecule encoding a chimeric synthase polypeptide including a first isoprenoid synthase joined to a second domain from a second, different isoprenoid synthase, whereby the chimeric isoprenoid synthase is capable of catalyzing the production of isoprenoid reaction products that are not produced in the absence of the second domain of the second, heterologous isoprenoid synthase. Furthermore, cells and transgenic plants comprising said nucleic acid molecule are described. Moreover, a chimeric isoprenoid synthase polypeptide and a method for producing a chimeric isoprenoid synthase polypeptide are provided..
Patent CZ-9903188-A3 (CZ)
Title: Spark plug for spark-ignition internal combustion engines and ignition process of fuel mixtures by making use of this spark plug
Inventor: JANCA JAN PROF RNDR DRSC
IPC: H01T13/40
Filed: 1999-09-09
Abstract: The present invention is characterized in that the central electrode of a spark plug is formed by a tube (5), which is adapted for connection by its exterior end to a supply of compressed air or compressed air and fuel mixture. Shaped projections of the earth electrode and the central electrode are performed as deflected tabs (1, 6) arranged on opposite sides of both the electrodes and protruding parallel from edges thereof so that they first near continuously to each other up to a distance needful for ignition of a high-pressure sliding glow between them and then their both ends successively open from each other. Ignition process of a fuel mixture in a spark-ignition engine cylinder by making use of the invented spark plug is characterized in that at the instant of glow excitation at the narrowest spot between the central and earth electrode tabs (1, 6) air or air-fuel mixture is injected into the compression space of a cylinder at a pressure grater than that one in the cylinder, to thereby causing a cluster-like propagation of discharge and sliding movement thereof, whereby range of this discharge continuously increases with increasing distance between the ends of the electrodes in the direction movement of the discharge movement in the cylinder compression space. A sliding high-pressure glow occurs.
Patent CZ-319399-A3 (CZ)
Title: Device for maintaining conveyor belt
Inventor: RUSSKAMP DIETER
IPC: D06B3/20
Filed: 1998-02-28
Abstract: The invention relates to a treatment device (100) comprising a receptacle (5) for a treatment fluid in which a drum (10) surrounded by a strip of fabric (W) carries out eccentric rotating movements. The drum (10) consists of parallel, hollow sealed bars (11) and has a shaft (15) configured as a hollow shaft, all of which together generate a vertical lift that corresponds to a significant part of the weight of the drum (10) and drum shaft (15). The drum (10) is suspended at one end on elastic drive belts (32) and at the other end on tension springs (33) which bear the remaining weight. The shaft of the drum (10) is eccentrically mounted on an eccentric shaft (20) having balancing weights (28). All these measures help ensure that the treatment device (100) emits few vibrations to the outside when it is operational.
Patent CZ-352298-A3 (CZ)
Title: Process for preparing aromatic methyl amines
Inventor: MIURA MOTOO
IPC: C07C255/58
Filed: 1998-02-04
Abstract: The object of the invention is to provide a process for preparing a cyano group-containing methylamine, comprising hydrogenating only one of the two nitrile groups of an aromatic dinitrile, wherein the aromatic dinitrile is reacted at a high conversion ratio using a small amount of a catalyst under the conditions of a low temperature and a low pressure to prepare a cyano group-containing aromatic methylamine in a high yield. According to the invention, in the preparation of a cyano group-containing methylamine from an aromatic dinitrile, at least one of a Raney catalyst activated by bringing it into contact with hydrogen in a solvent (activated Raney catalyst) and a Raney catalyst regenerated by bringing it into contact with hydrogen in a solvent in the presence of an alkali (regenerated Raney catalyst) is employed. In the preferred embodiment, the activated Raney catalyst is used in an amount of 0.1 to 10 % by weight, preferably 0.5 to 5 % by weight, based on the aromatic dinitrile, and/or the regenerated Raney catalyst is used in an amount of 0.1 to 50 % by weight, preferably 0.5 to 20 % by weight, based on the aromatic dinitrile. The activated Raney catalyst is preferably a Raney catalyst activated in a solvent in a hydrogen atmosphere and containing nickel and/or cobalt. The regenerated Raney catalyst is preferably a Raney catalyst regenerated by bringing a Raney catalyst having been used for preparing a cyano group-containing aromatic methylamine from an aromatic dinitrile into contact with hydrogen in a solvent in the presence of an alkali.
Patent CZ-404897-A3 (CZ)
Title: Process for producing a ring-shaped insulation lining of mineral fibers, apparatus for producing such ring-shaped insulation lining of mineral fibers and the ring-shaped insulation lining of mineral fibers
Inventor: CRIDLAND IAN
IPC: D04H1/4226
Filed: 1996-06-19
Abstract: A method of producing an annular insulating mineral fiber covering, comprises the following steps: producing a first non-woven mineral fiber web defining a longitudinal and a transversal direction parallel with the first non-woven mineral fiber web, moving the first non-woven mineral fiber web in the longitudinal direction, folding the first non-woven mineral fiber web transversely relative to the longitudianl direction and parallel with the transversal direction by decelerating the first non-woven mineral fiber web so as to produce an unsupported second non-woven mineral fiber web comprising ondulations including two sets of ondulation peaks extending in opposite directions relative to one another and relative to a plane of separation parallel with the longitudinal and transversal directions, separating the two sets of ondulation peaks from one another and from the second non-woven mineral fiber web along the plane of separation so as to produce two sets of curved half-coverings, and composing two half-coverings of the two sets of curved half-covering into the annular insulating mineral fiber covering. The invention also relates to a plant for producing an annular insulating mineral fiber covering, and an annular insulating mineral fiber covering.
Patent CZ-428199-A3 (CZ)
Inventor: DUSCH NICOLE DR
IPC: C12N1/21
Filed: 1999-11-30
Abstract: Popisuje se způsob výroby pantothenové kyseliny fermentací
mikroorganismů, ve kterýchje zesílen (zvýšenajeho exprese)
alespoň gen panD, popřípadě v kombinaci s genem panB
a/nebo genempanC a zvýší se koncentrace kyseliny
pantothenové v médiu nebo buňkách mikroorganismu.
Patent ES-192695-A3 (ES)
Title: Un telar para tejer cintas
Filed: 1950-04-20
Abstract: Telar para tejer cintas que siendo de marcha rápida y pasada única se caracteriza por conseguir se en el mismo el movimiento de los lizos (17)a partir del eje motor (2) por medio del engranaje de piflones (4-5) que transmiten movimiento a otro eje (6) al que van fijados dos piñones (7-8) a su vez transmisores de movimiento con intercalamiento de respectivos intermediarios (9-10) a dos ruedas (11-12) que siendo independientes entre sí pueden girar sobre un mismo eje fijo (13) llevando cada una de esas ruedas a propósito acoplados para poder reglarse su posición entre sí un determinado número de excéntricos; (14) cada uno de los cuales con su giro acciona a una palanca (16) y ésta al correspondiente lizo.
Patent SK-140998-A3 (SK)
Title: Fungicidal mixtures
Inventor: MULLER RUTH
IPC: A01N47/24
Filed: 1997-04-03
Abstract: Fungicidal mixtures containing in a synergetically effective amount: a1) at least one compound from the group of oxime ethers of the formula (I) in which X is oxygen or amino (NH); Y is CH or N; Z is oxygen, sulphur, amino (NH) or C1-C4 alkylamino (N-C1-C4-alkyl); R' is C1-C6 alkyl, C1-C6 alkyl halide, C3-C6 alkenyl, C2-C6 alkenyl halide, C3-C6 alkinyl, C3-C6 alkinyl halide, C3-C6 cycloalkyl methyl or benzyl, which may be partially or fully halogenated and/or may contain one to three of the radicals cyano, C1-C4 alkyl, C1-C4 alkyl halide, C1-C4 alkoxy, C1-C4 alkoxy halide and C1-C4 alkyl thio; a2) carbamates of the formula (II) in which T is CH or N, n is 0, 1 or 2 and R is halogen, C1-C4 alkyl or C1-C4 alkyl halide, where the radicals R may differ if n is 2, and b) a phthalimide derivative selected from the group of compounds (III) and (IV).
Patent SK-152398-A3 (SK)
Title: Apparatus for separating gases from liquids, use of the apparatus for the separation of hydrogen sulfide from liquid sulfur and the degassed sulfur obtained
Inventor: HOFER WOLFGANG
IPC: C01B17/02
Filed: 1998-11-05
Abstract: Hydrogen sulfide is removed in the production of sulfur in a novel process. When the sulfur is in the liquid state, it is fed through two reactors of similar construction, each fed from the bottom and overflowing from the top. These reactors are covered by a hood so that gas liberated is collected and removed.
Patent SK-169798-A3 (SK)
Title: Chitinase materials and methods
Inventor: GRAY PATRICK W
IPC: A61K38/00
Filed: 1997-06-16
Abstract: The present invention provides purified and isolated polynucleotide sequences encoding human chitinase. Also provided are materials and methods for the recombinant production of human chitinase products which are expected to be useful as products for treating fungal infections or for development of products useful for treating the same.
Patent SK-169999-A3 (SK)
Title: Controlled release pharmaceutical preparation with ace inhibitor as active agent
Inventor: FISCHER WILFRIED
IPC: A61K9/50
Filed: 1998-06-12
Abstract: The invention relates to a pharmaceutical preparation which comprises or consists of the following components:(i) an initial dose of active ingredient, which is provided by the active ingredient together with optional excipients,(ii) a first delayed-release type of pellet, in which the active ingredient and optional excipients are covered with a coating, and(iii) a second delayed-release type of pellet, in which the active ingredient and optional excipients are again covered with a coating,wherein the active ingredient is an ACE inhibitor, andwherein the amounts of the coatings according to (ii) and (iii) are present in a ratio, based on weight, within the range of from 1:2 to 1:7.
Patent SK-272012-A3 (SK)
Inventor: POJEZDALA JOZEF
IPC: H02K7/18
Filed: 2012-04-27
Abstract: Pneumatický posilňovač pozostáva z rúry (1), ktorá je na
podstavcoch (2).V prednej časti je vzduchové čerpadlo (3)
poháňané elektromotorom (4), ktorý je pripevnený pomocou
skrutiek (5) ku konzole (6) a k základni (7), pričom je
vodičom (8) napojený na termostat (9) a elektrickú sieť
(10). V rúre (1) sú na konzolách (11) upevnené pomocou
skrutiek (12) generátory (13) poháňané vrtuľkou (14).
Konzola (11) je pripevnená k rúre (1) pomocou skrutiek
(15) a vodič (16) je vyvedený otvorom (17) z rúry (1). Kryt
(18) zakrýva elektromotor (4).
Patent SK-272992-A3 (SK)
Title: Interlocking brick
Inventor: SCHEIWILLER RENE
IPC: E01C5/06
Filed: 1992-09-01
Abstract: The side surfaces of the interlocking bricks (1, 7) are provided with relatively flat interlocking elements (2 - 6) which, when the bricks have been laid, engage in one another with low play, mutually adjacent side surfaces of neighbouring bricks touching only along two lines. A compromise is thus struck between an adequate mutual securing of the bricks and a given mutual mobility of the same, in particular a given tilting between neighbouring bricks, which makes it possible to create uneven places in pavings. <IMAGE>